Quick Details
Adults
13 +
$ 65
Children
4-12
$ 60
Beautiful Nighttime Bio Bay Kayak Tours
Discover the enchanting beauty of Vieques’ Mosquito Bay on our guided bioluminescent tours. Glide across the glowing waters, where millions of microscopic organisms called dinoflagellates light up with each movement, creating a mesmerizing, sparkling effect. As you kayak or boat through the bay, every paddle stroke ignites a trail of brilliant blue light, transforming the water into a scene straight out of a dream.
Arrive promptly for a brief safety meeting before embarking on this unforgettable adventure. Our knowledgeable guides will lead you on a journey into nature’s magic, offering a deeper connection to this rare, awe-inspiring phenomenon.
If you plan to return to the main island the same day, please note that due to seasonal daylight changes, all tours now start at 7:00 PM, 8:00 PM, 9:00 PM, and 10:00 PM.
Monday through Friday, only the 7:00 PM tour allows enough time to return on the 9:30 PM ferry. On Saturdays and Sundays, same-night return to the main island is not possible.
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- Kayak
- Lifevest
- Guide
- Fun!
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If you plan to return to the main island the same day, please note due to seasonal daylight changes, all tours now start at 7:00 PM, 8:00 PM, 9:00 PM, and 10:00 PM.
🗓️ Monday through Friday:
Only the 7:00 PM tour allows enough time to return on the 9:30 PM ferry.🗓️ Saturday and Sunday:
Same-night return to the main island is not possible.Please coordinate your transportation with us in advance, and contact us ahead of time to confirm that your selected tour meets the minimum participant requirement.
Failure to coordinate these details may result in an unexpected overnight stay in Vieques, as later ferry options may not be available.
📞 If you expect to arrive late or feel lost, please call us immediately at 939-426-8561.
Do not wait until after the tour departs — this will be considered a no-show, and no refund will be issued201–279 Calle Flamboyan Vieques, PR 00765
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Important Travel Notice
If you plan to participate in the tour and return to the main island (Puerto Rico) on the same day, please note the following:
🗓️ Monday through Friday:
Only the 7:00 PM tour allows enough time to return on the 9:30 PM ferry.🗓️ Saturday and Sunday:
Same-night return to the main island is not possible.Please coordinate your transportation with us in advance, and contact us ahead of time to confirm that your selected tour meets the minimum participant requirement.
Failure to coordinate these details may result in an unexpected overnight stay in Vieques, as later ferry options may not be available.
📞 If you expect to arrive late or feel lost, please call us immediately at 939-426-8561.
Do not wait until after the tour departs — this will be considered a no-show, and no refund will be issuedLook for our bright yellow short school bus—you can’t miss it! Our friendly team will be there to welcome you and assist with check-in.
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Recommended Items to Bring:
Comfortable clothing
Water shoes or sandals
Insect repellent (Deet Free)
Waterproof bag for personal items
Camera or waterproof phone case
Towel -
Important Travel Notice
If you plan to participate in the tour and return to the main island (Puerto Rico) on the same day, please note the following:
🗓️ Monday through Friday:
You must book the 7:00 PM tour as it’s the only tour that allows enough time to return on the 9:30 PM ferry.🗓️ Saturday and Sunday:
Same-night return to the main island is not possible.Please coordinate your transportation with us in advance, and contact us ahead of time to confirm that your selected tour meets the minimum participant requirement.
Failure to coordinate these details may result in an unexpected overnight stay in Vieques, as later ferry options may not be available.
📞 If you expect to arrive late or feel lost, please call us immediately at 939-426-8561.
Do not wait until after the tour departs — this will be considered a no-show, and no refund will be issuedLook for our bright yellow short school bus—you can’t miss it! Our friendly team will be there to welcome you and assist with check-in.
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Our 10 Rules to ensure the safety and enjoyment of your tour:
Listen to your tour guide: Follow their instructions for a smooth and safe experience.
Wear appropriate safety gear: Life jackets and helmets are provided for your protection—wear them at all times.
Respect wildlife: Observe animals from a distance and refrain from feeding or touching them.
Stay with the group: Stick together with your tour companions to ensure no one gets lost.
Be mindful of weather conditions: Prepare for changes in weather and follow the guide’s advice regarding safety protocols.
Follow Route: Clients must dispose of any trash or waste in designated areas and refrain from littering in the bio bay or surrounding environment.
No Swimming: Swimming in the bio bay is not permitted due to safety reasons and to preserve the natural habitat. Clients must remain in their kayaks at all times.
Stay Calm: In the event of unexpected circumstances such as capsizing or encountering wildlife, clients must remain calm and follow the guide’s instructions for a safe resolution.
Dress Appropriately: Clients should wear appropriate clothing and footwear suitable for kayaking, including swimwear, rash guards, and water shoes.
Enjoy responsibly: Have fun, but remember to respect the environment and fellow tour participants for a memorable experience.
If you need to catch the late ferry back to the main island of Puerto Rico Monday-Friday, you must book the 7:00 PM tour. Otherwise, you’ll have to stay in Vieques overnight. (Saturday and Sunday there is no late ferry back)
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Mosquito Biobay Tours LLC — Cancellation & Rescheduling Policy
How timing is calculated: All timeframes are based on the scheduled check-in time for your tour and local time in Vieques, Puerto Rico (AST).
How to cancel or modify: Email biobay@mosquitobiobaytours.com or call/WhatsApp +1 (939) 426-8561A) Standard
bookings (1–10 guests)48 hours or more before the tour: Full refund or free reschedule.
Between 48 and 24 hours before the tour: 50% refund; rescheduling based on availability.
Less than 24 hours before the tour: Non-refundable; rescheduling may be offered at management’s discretion.
No-shows: No refund and no reschedule (no exceptions).
B) Group bookings (10+ guests)
7 days or more before the tour date: Full refund or free reschedule.
Less than 7 days before the tour date: Non-refundable; rescheduling may be offered at management’s discretion and subject to availability.
This 7-day group policy supersedes the standard 48/24-hour timeline above.
C) Weather & safety
If we cancel due to weather or conditions beyond our control, you may reschedule or receive a full refund. Determinations about weather/safety cancellations are made by Mosquito Biobay Tours to protect guest safety and tour quality.
D) Minimum participant requirement
Our tours require a minimum of 10 confirmed participants to operate. If the minimum is not met, we may reschedule your tour to another available date/time or offer an alternative experience, depending on availability. We will notify you in advance if an adjustment is needed.
E) Ferry tickets
Guests are responsible for securing ferry tickets. We are not responsible if you are unable to obtain ferry tickets; please secure them before booking with us.
F) Refund method
Approved refunds are issued to the original form of payment. Processing times may vary depending on your bank or card issuer.
Thanks in advance for your help in this matter.