Speedboat to Coll Baix Beach and Sea Cave — Alcudia Coastal Snorkel & Ride

Fast Boat Coll Baix playa y cuevas launches from Puerto De Alcudia on Mallorca’s sheltered north shore, a short ride from the old town of Alcudia in Islas Baleares, Spain. This brisk speedboat outing stitches together high-speed cruising along sheer limestone cliffs, a swim and snorkel in the glassy turquoise of Coll Baix Beach, and a hands-on peek into a coastal sea cave carved by the Mediterranean. The trip begins at the pier—Puerto De Alcudia, Alcudiamar 39.8400386, 3.1328248, 07400 Alcudia, Illes Balears, Spain—where the crew runs safety briefings before sliding onto open water. Within minutes the shoreline drops away: pale calcarenite and limestone cliffs scarred by wave action; scrubby Mediterranean maquis—thyme, rosemary and small pines—clinging to narrow terraces. Stop one is Coll Baix, a small cove famed for exceptionally clear water and patches of Posidonia seagrass, a vital nursery for fish. Guests jump in to float, snorkel and pick out garfish and damselfish among submerged rock ledges. After the swim the captain peels the throttle and the landscape blurs into a more rugged stretch of coast. The main draw is a cavern whose mouth yawns at sea level, a cool hollow hewn by centuries of surge. From the boat you can peer into a vault of pale rock and sculpted arches; depending on sea conditions the skipper will enter the mouth and steer into calm inner chambers where sunlight fractures, throwing shafts across the water. What makes this outing special is its marriage of pace and intimacy: the speedboat thread covers more coastline than a shoreline hike would allow, while still delivering swimming and a sheltered cave experience that feels off the beaten track. It’s an efficient way to sample Mallorca’s northern coastal geology, marine life and cliff-top vegetation in a single morning or afternoon. Practical notes: sea conditions vary—ask about swell before booking. Bring reef-safe sunscreen, a mask and snorkel, water shoes for rocky entries, and a light wind layer. The short run-time and proximity to Alcudia make it an easy add-on for travelers based in town or exploring the larger Bay of Alcúdia. For context, the area around Alcudia contains Roman ruins of Pollentia and a fortified medieval center; this coastline has supported fishing and small-scale coastal travel for generations. Eco-wise, avoid touching Posidonia and carry out any trash; these waters are protected and fragile. If you want a quieter window, early morning departures reduce boat traffic and catch glass-smooth water; late-afternoon trips gild the cave entrance with warm light and cooler air. Children comfortable in open water and confident swimmers enjoy the stops, but check minimum age with the operator. Book through the provided reservation link and confirm life-jacket policy; local captains monitor conditions closely for safety.