View glowing dinoflagellates through a glass-bottom catamaran
1 hr
Catamaran, bioluminescence
Cruise to a bioluminescent bay by catamaran and watch dinoflagellates glow beneath the boat. Learn what causes this natural phenomenon as you take in the coastal surroundings.
Cancel at least 48 hours before check-in to avoid being charged in full. Bookings within 48 hours of departure are nonrefundable. If the operator cancels due to weather or sea conditions, you will not be charged and can reschedule for the next available space.
Product ID: XNVTRS
The tour requires at least 20 people. If the minimum is not reached, your tour may be rescheduled or credited for another date.
All ages are welcome. Every passenger, including children and babies, needs a ticket to board.
La Parguera, Lajas, Puerto Rico
We did not book ahead and just showed up on a Friday afternoon. Fondo de Cristal Tours was the only company open. We asked for a snorkel tour and they said normally you need a reservation but they would see if one of their captains would be willing to take our party of 4. Captain Billy agreed and gave us a lovely tour in English as my mother and husband don’t speak Spanish. He showed us houses and marinas on our way out and stopped at two different mangrove keys so we could see sea life. He was patient and even called out a better ladder for my mother who had trouble getting in on the attached ladder. He made sure we got our full 3 hours and did not rush at all. Well worth our time and money.
Lori Pine
August 15, 2026
We did not book ahead and just showed up on a Friday afternoon. Fondo de Cristal Tours was the only company open. We asked for a snorkel tour and they said normally you need a reservation but they would see if one of their captains would be willing to take our party of 4. Captain Billy agreed and gave us a lovely tour in English as my mother and husband don’t speak Spanish. He showed us houses and marinas on our way out and stopped at two different mangrove keys so we could see sea life. He was patient and even called out a better ladder for my mother who had trouble getting in on the attached ladder. He made sure we got our full 3 hours and did not rush at all. Well worth our time and money.
Lori Pine
August 15, 2026
Take the helm for a self-guided day on the water
Take the helm and explore the cays at your own pace
Take the Helm for Your Own Lajas Bay Adventure
Watch the sunset from a private boat at Mata la Gata
Paddle mangrove channels and explore small cays at your own pace
Paddle calm, shallow waters after a boat ride to the bioluminescent bay
Paddle clear-bottom kayaks through La Parguera's mangrove channels
Explore Caracoles and nearby cays on a captain-led private boat charter
Private reef snorkeling and sandbar time with a licensed captain