Medes Islands Cruises and Boat Tours
Medes Islands cruises and boat tours explore a small protected archipelago just off the Costa Brava, where the main attraction is not only the islands above the water but also the rich marine environment surrounding them.
The Medes Islands sit close to L’Estartit, making the town the most practical departure base for short sightseeing cruises, guided snorkeling, glass-bottom boats and underwater-viewing trips. Longer excursions can continue along the cliffs, coves and caves of the Montgrí coast, while full-day catamaran routes also reach the islands from Roses.
The most important booking decision is how you want to experience the protected marine environment. You can stay onboard and watch through glass-bottom or submerged viewing areas, enter the water on a guided snorkeling trip, combine the islands with Montgrí caves and a swimming stop, or choose a longer sailing day from another Costa Brava base.
EuroAquaTours helps you choose the Medes Islands boat tour that best fits your departure point, available time, swimming ability, interest in marine life and whether you want the islands themselves or a wider Costa Brava coastal route.
Quick Verdict
For most first-time visitors, choose a Medes Islands cruise from L’Estartit that also continues along part of the Montgrí coast and includes a swimming stop. It gives you the best balance between the protected islands, underwater viewing and the cliffs, coves and caves that make the surrounding coastline worth seeing.
Choose dedicated guided snorkeling when the underwater ecosystem is your main reason for visiting. Choose an underwater-cabin or glass-bottom boat when you want to observe the marine environment without needing to swim.
Choose a traditional small boat when local character matters, or a longer catamaran from Roses when you prefer to turn the Medes Islands into a substantial full-day Costa Brava cruise.
If you are deciding where to depart, see L’Estartit Cruises and Boat Tours. For wider regional planning, compare Costa Brava Cruises and Boat Tours.
Protected-area note: The Medes Islands form part of a specially protected natural area with rules for navigation and marine activities. Follow the instructions of your operator or guide, do not feed marine wildlife and avoid disturbing the seabed or protected vegetation. The goal is to experience the reserve without damaging the environment that makes it worth visiting.
Start Here: Find and Book Your Medes Islands Boat Tour
Use the live options below to review current L’Estartit and Costa Brava departures, snorkeling trips, glass-bottom boats, underwater-viewing vessels, Montgrí cave routes, swimming stops and longer catamaran cruises.
Good tour types to explore: Medes Islands sightseeing cruises, guided snorkeling, glass-bottom boats, underwater-cabin trips, Montgrí cave routes, traditional boats and longer catamaran cruises from Roses.
Not Sure Which Medes Islands Boat Tour to Book?
If this is your first visit and you want a balanced experience, start with a short cruise combining the Medes Islands, Montgrí coastline, caves and a swimming stop. It gives you more variety than simply circling the islands while remaining easy to fit into a Costa Brava day.
Choose guided snorkeling when marine life below the surface matters most. Choose the underwater-cabin format when you want to see below the water without swimming.
A traditional boat is better when local maritime atmosphere matters, while a full-day catamaran from Roses suits travelers who want sailing, food and several hours at sea rather than a short attraction-focused trip.
Best Medes Islands Boat Tours at a Glance
- Best overall: Medes Islands, caves and swimming boat trip
- Best for underwater exploration: guided Medes Islands snorkeling trip
- Best family all-rounder: glass-bottom boat and Montgrí swim
- Best without swimming: underwater-cabin boat tour
- Best traditional choice: Medes Islands traditional boat, caves and swim
- Best long sailing day: Roses to Medes Islands catamaran cruise
- Best sightseeing route from Roses: Illes Medes and L’Estartit catamaran trip
Medes Islands Route and Experience Decision Guide
One Important Thing to Know Before Booking
The value of a Medes Islands trip depends heavily on how the tour lets you experience the marine environment.
A sightseeing boat may take you around the islands but keep you completely onboard. A glass-bottom or underwater-cabin vessel gives you a view beneath the surface. A dedicated snorkeling trip puts most of the experience into the water with a guide.
Another major difference is route length. Some cruises focus closely on the Medes Islands, while others continue along the Montgrí coast to coves, cliffs, caves and Roca Foradada. Longer departures from Roses turn the islands into one part of a much broader Costa Brava day.
L’Estartit or Roses, Snorkeling or Glass-Bottom: Which Should You Choose?
| Choice | Best For | Typical Experience | What to Check | Next Step |
|---|---|---|---|---|
| L’Estartit classic cruise | Best first Medes Islands experience | Islands, caves, Montgrí scenery and swimming | Route length, cave coverage, swim stop and boat type | Check availability |
| Guided snorkeling | Marine life and active travelers | Boat transfer plus guided time in the protected waters | Minimum age, equipment, water time and swimming ability | Check availability |
| Glass-bottom boat | Families and mixed groups | Above-water sightseeing, underwater viewing and swimming | Glass-viewing format, swim stop, route and duration | Check availability |
| Underwater cabin | Non-swimmers and families | Protected seabed viewed through large submerged windows | Visibility, cabin access, route and total duration | Check availability |
| Traditional small boat | Local atmosphere and smaller groups | Medes Islands, caves, glass viewing and seasonal swimming | Capacity, cave access, swim stop and sea conditions | Check availability |
| Roses catamaran | Long full-day experience | Longer Costa Brava sailing, Medes Islands, swimming and food | Total duration, swimming stop, meal and sea time | Check availability |
| Roses sightseeing catamaran | Non-swimming regional sightseeing | Roses Bay, Medes underwater viewing and L’Estartit free time | Departure point, underwater viewing, town time and accessibility | Check availability |
Simple rule: Choose L’Estartit for the shortest and most direct access, guided snorkeling for the strongest underwater experience, glass-bottom or underwater-cabin boats when staying onboard matters, and Roses when you want the Medes Islands to form part of a longer Costa Brava sailing day.
Best Medes Islands Boat Tour Options
Best Overall: Medes Islands, Caves and Swimming
This is the strongest first choice because it combines the protected archipelago with the neighboring Montgrí coastline rather than treating the islands as an isolated sightseeing loop.
The route can include Roca Foradada, sea caves, small coves, underwater viewing and a swimming stop, providing several different reasons to be on the water within a relatively short excursion.
Best for: First-time visitors, couples, families and travelers wanting both scenery and swimming.
What to check: Exact cave route, swimming location, boat capacity and how conditions affect the itinerary.
Best for Marine Life: Guided Snorkeling
Snorkeling makes the protected underwater environment the main experience rather than something you view briefly through a window.
The current guided format includes equipment, an environmental briefing and guided time in the water before returning to the boat.
Best for: Confident swimmers, marine-life enthusiasts, active travelers and suitable families.
What to check: Minimum age, swimming ability, equipment, water time and current sea conditions.
Best Family All-Rounder: Glass-Bottom Boat and Swim
This option works particularly well for groups in which some travelers want to swim while others prefer to stay on deck.
Underwater viewing adds interest around the marine reserve, while the Montgrí swimming stop provides time to snorkel, swim or simply relax onboard.
Best for: Families, mixed-ability groups and first-time visitors.
What to check: Underwater viewing area, swimming stop, snorkeling equipment and total route.
Best Without Swimming: Underwater-Cabin Boat
The submerged viewing cabin is one of the clearest ways to experience why the Medes Islands are known for their underwater environment without putting on snorkeling equipment.
The route also follows part of the Montgrí coastline, providing cliffs and coves above the water in addition to marine viewing below it.
Best for: Families, non-swimmers, short visits and travelers who prefer a comfortable sightseeing format.
What to check: Underwater visibility, cabin access, route and whether mobility limitations affect boarding.
Best Traditional Choice: Núria Fishing Boat
A traditional boat changes the experience from a conventional tourist cruise into something more closely tied to L’Estartit’s maritime history.
The small vessel can combine Medes Islands viewing with Montgrí caves, coves, glass-bottom views and a seasonal swimming stop.
Best for: Couples, smaller groups, photographers and travelers interested in local maritime character.
What to check: Passenger capacity, cave route, swimming season and sea conditions.
Best Full-Day Choice: Catamaran From Roses
Travelers based farther north on the Costa Brava do not necessarily need to drive to L’Estartit. A catamaran from Roses can turn the Medes Islands into part of a much larger sailing day.
The current format crosses the Bay of Roses, reaches the Medes Islands and includes a long swimming and relaxation stop with food and drinks.
Best for: Roses stays, couples, groups of friends and travelers wanting a full day at sea.
What to check: Total sailing time, swim location, food, drinks, shade and return schedule.
EuroAquaTours Medes Islands Cruise Finder
First Time Visiting?
Choose a short L’Estartit route combining the Medes Islands with Montgrí caves and a swimming stop.
Want the Best Underwater Experience?
Choose guided snorkeling. It gives substantially more direct contact with the protected marine environment than sightseeing from the deck.
Do Not Want to Swim?
Choose an underwater-cabin or glass-bottom vessel so you can still see beneath the surface.
Traveling With Children?
Start with the glass-bottom or underwater-cabin formats and check the exact duration, facilities and child rules.
Want Caves and Cliffs Too?
Choose a route that explicitly continues into the Montgrí coastal section rather than only circling the islands.
Staying in Roses?
Compare the full-day sailing catamaran with the sightseeing catamaran before driving south to L’Estartit.
Compare Medes Islands Cruises and Boat Tours
| Tour Type | Best For | Typical Experience | What to Check | Next Step |
|---|---|---|---|---|
| Islands + caves cruise | Best first experience | Medes Islands, Montgrí coast, caves and swimming | Route, swim stop, boat size and cave access | Check availability |
| Guided snorkeling | Underwater marine life | Boat transfer, guided snorkeling and island circuit | Age, swimming ability, equipment and water time | Check availability |
| Glass-bottom + swim | Families and mixed groups | Underwater viewing, Montgrí bay and swimming | Glass area, snorkel gear and route | Check availability |
| Underwater cabin | Non-swimmers | Panoramic seabed viewing plus coastal sightseeing | Visibility, accessibility and duration | Check availability |
| Traditional boat | Local character | Small-group islands, caves and seasonal swimming | Capacity, cave route and conditions | Check availability |
| Roses sailing catamaran | Full-day relaxation | Longer sailing, islands, swimming, BBQ and drinks | Sailing time, food, swim stop and shade | Check availability |
| Roses sightseeing catamaran | Regional sightseeing | Roses Bay, underwater viewing and L’Estartit visit | Town time, viewing cabin and mobility requirements | Check availability |
Before booking: Check your actual departure harbour, whether the route focuses only on the Medes Islands or also explores the Montgrí coast, how underwater viewing works, whether swimming or guided snorkeling is included, passenger capacity and the operator’s weather policy. Because this is a protected marine area, also follow all onboard and in-water instructions. For wider booking checks, use our Boat Tour Booking Guide.
Planning Tips for Medes Islands Boat Tours
Use L’Estartit for Direct Access
L’Estartit is the closest major departure base and therefore makes the most sense when you want a short Medes-focused trip rather than a full-day regional cruise.
Choose Above or Below Water First
If snorkeling sounds appealing, start there. If not, narrow the choice to glass-bottom and underwater-cabin boats before comparing route length.
Check Whether Montgrí Is Included
The protected islands are only part of the scenery. Routes continuing along the Montgrí coast add cliffs, caves, coves and formations such as Roca Foradada.
Respect the Marine Reserve
Do not feed wildlife, touch marine life or disturb the seabed. Follow your guide’s instructions during snorkeling and any protected-area navigation rules.
Expect Visibility to Vary
Glass-bottom and underwater-cabin viewing depends on natural water and light conditions. Choose these tours for the overall marine and coastal experience rather than expecting identical visibility every day.
Do Not Drive to L’Estartit Automatically
If you are staying around Roses, current longer catamaran routes already reach the Medes Islands. Compare the additional sailing experience against the convenience of driving to a direct L’Estartit departure.
Best Time for Medes Islands Cruises and Boat Tours
The Medes Islands can be appreciated from sightseeing boats across a broader season, while snorkeling, swimming and longer leisure cruises become most attractive during the warmer Costa Brava months.
March to May
Spring is useful for quieter sightseeing and glass-bottom cruises when available. Cooler water means snorkeling and swimming may be less central than observing the islands and coastline.
June to August
This is the strongest season for snorkeling, swimming, traditional boat excursions and the broadest range of Medes Islands departures. Peak summer also brings the greatest visitor demand.
September and October
September can offer an excellent balance of warm water and less peak-season pressure. Snorkeling can remain attractive while schedules generally become thinner later in autumn.
November to February
Warm-season leisure inventory is much more limited. Check live departures and conditions rather than assuming the complete summer cruise program operates year-round.
Who Is a Medes Islands Boat Tour Best For?
The Medes Islands are especially well suited to travelers who want marine nature to be the main reason for taking a boat trip rather than simply seeing a coastline from offshore.
- First-time Costa Brava visitors A combined Medes and Montgrí cruise provides a compact introduction to both the marine reserve and the surrounding coastline.
- Snorkelers Guided trips allow the protected underwater environment to become the main part of the experience.
- Families Glass-bottom and underwater-cabin boats give children something to see below the surface without requiring everyone to swim.
- Non-swimmers Underwater viewing makes the marine reserve accessible as an experience without entering the water.
- Nature-focused travelers The islands are valuable because of the combination of protected seabed, marine life, rocky coast and bird habitat.
- Photographers Island silhouettes, cliffs, caves, rock arches and sunset light create several distinct visual settings.
- Couples Smaller traditional boats and longer catamarans offer alternatives to short family-oriented sightseeing vessels.
- Roses-based travelers Longer catamaran routes make it possible to experience the islands without changing accommodation base or driving south first.
Which Medes Islands Experience Fits Your Trip Best?
The Medes Islands remain the central attraction in each option, but the right tour depends on whether underwater viewing, swimming, wider coastal scenery or a longer day at sea matters most.
- Choose a classic Medes and Montgrí cruise for your first visit It gives you the broadest combination of islands, caves, cliffs and swimming in a short format.
- Choose guided snorkeling for direct underwater exploration This is the strongest fit when marine life is the reason you chose the Medes Islands.
- Choose a glass-bottom boat for mixed groups Some passengers can enjoy underwater views from onboard while others use the swimming stop.
- Choose the underwater cabin when staying dry is essential It provides a more focused below-water view without requiring snorkeling.
- Choose a traditional boat for local maritime character The vessel and smaller-group feel become an important part of the experience.
- Choose Roses for a longer sailing day The Medes Islands become one major stop within a broader Costa Brava catamaran itinerary.
Related EuroAquaTours Guides
Continue planning with related Costa Brava, Spain and marine boat-tour guides.
Frequently Asked Questions About Medes Islands Cruises and Boat Tours
Where are the Medes Islands?
The Medes Islands are a small archipelago just off the Costa Brava near L’Estartit in Catalonia, Spain. L’Estartit is the closest major departure base for short sightseeing, snorkeling and underwater-viewing trips.
What is the best Medes Islands boat tour for a first visit?
For most visitors, choose a route from L’Estartit that combines the Medes Islands with part of the Montgrí coast, caves and a swimming stop. It provides more variety than an islands-only circuit while remaining relatively short.
Can you snorkel around the Medes Islands?
Yes. Guided snorkeling is one of the strongest experiences associated with the islands. Choose an organized trip that provides appropriate equipment and explains how to behave responsibly inside the protected marine environment.
Are there glass-bottom boat tours to the Medes Islands?
Yes. Current inventory includes glass-bottom and submerged-cabin vessels that allow passengers to observe the protected seabed while remaining onboard.
Should I depart from L’Estartit or Roses?
Choose L’Estartit when you want the shortest and most direct Medes Islands experience. Choose Roses when you want a longer catamaran journey in which the islands form part of a broader Costa Brava sailing day.
Do Medes Islands boat tours also visit the Montgrí coast?
Many do, but not all. Some routes continue to cliffs, coves, sea caves and Roca Foradada, while others concentrate more closely on the islands and marine reserve. Check the exact itinerary before booking.
Are Medes Islands boat tours suitable for families?
Many are. Glass-bottom and underwater-cabin trips can be particularly useful for families because marine viewing does not depend on every passenger being able or willing to snorkel. Check duration, child rules and swimming arrangements for the exact tour.
When is the best time to take a Medes Islands boat tour?
June through September provides the strongest combination of warm water, snorkeling and broad boat-tour availability. Spring and early autumn can also work very well for sightseeing and glass-bottom trips.
Final Recommendation
For most first-time visitors, choose a Medes Islands cruise from L’Estartit that also includes the Montgrí coast, caves and a swimming stop. It gives you the strongest overall introduction without requiring a full day on the water.
Choose guided snorkeling when the underwater ecosystem is the main attraction, a glass-bottom or underwater-cabin boat when you want to stay onboard, or a traditional boat when local maritime character matters more.
If you are staying farther north around Roses and want a substantial sailing day, the longer catamaran route can be more convenient than travelling to L’Estartit for a short cruise.
Before paying, confirm the departure harbour, route around the islands, Montgrí coverage, swimming or snorkeling arrangements, underwater-viewing format and current weather policy.
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