Board an air-conditioned catamaran from Roses and watch the seabed come alive through underwater viewing rooms as you cruise the wild coves of Cap de Creus. This 90-minute trip is an easy, scenic introduction to Mediterranean marine life and the dramatic geology of the Costa Brava.
More ways to explore the area's outdoor wonders
You step aboard a low-slung catamaran at the Roses promenade and the harbor breathes salt and wind into the morning. The boat slips past low cliffs and pine-tipped coves; the Mediterranean seems to lean forward, offering a clear window into its world. Inside the Aquarium II’s air-conditioned viewing room, the seabed unrolls like a living map—Posidonia meadows sway, bony fish dart, and sunlight fractures into columns that move with the swell.
Difficulty
easy
Duration
1.5 hours
Fitness Level
Suitable for most people with basic mobility; no swimming or diving required
Wildlife
History
The Cap de Creus coastline records human use from Roman fishermen to medieval watchtowers; fishing villages like nearby Roses still reflect a maritime culture.
Conservation
Posidonia oceanica meadows here are protected for their carbon storage and as nursery habitat—avoid anchoring on meadows and follow park rules to minimize impact.
Reserve your spot on the Cala Murtra: Immerse yourself in the beauty of an underwater world today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring motion-sickness remedies
The catamaran holds steady but the viewing cabin sits low—if you’re prone to seasickness, take medication or bring wrist bands before departure.
Protect your camera gear
Spray and glare are constant; use a wrist strap and a small microfiber cloth to keep lenses clear for underwater-view photos.
Time for clear water
Book morning departures for the clearest underwater visibility and fewer boats in the coves.
Respect marine rules
Cap de Creus is a protected natural park—don’t feed wildlife or attempt to collect marine life when near coves or shores.
Sunscreen (SPF 30+)
Open-deck time and reflection off water means strong sun exposure even on cooler days.
summer
Light windbreaker
Sea breezes can be chilly, especially on return after the cabin visit.
spring
Anti-nausea medication or bands
Useful if you’re susceptible to motion sickness on small-to-medium boats.
Waterproof camera or phone case
Protects electronics from spray and lets you capture clear shots of the coastline.
summer