BIOBAY TOUR

Biobay check-in is at our store & coffee shop located at 136 Calle Flamboyan, Esperanza, Vieques, across from the Malecón.

Glowing bioluminescent bay tour banner with kayaks under the night sky at JAK Watersports.

Biobay Tour

Once-in-a-Lifetime Bioluminescent Experience!

At your check-in time, we will meet at our store located at 136 Calle Flamboyán, next to the Vieques Conservation and Historical Trust.  Your Eco interpretive guides call the group of kayakers together for a briefing session covering basic kayak handling, rules of the road and the importance of keeping to a minimum any disturbance of the pristine environment of the bioluminescent bay.

Explore these amazing organisms up close in our  group excursions led by knowledgeable interpretive guides. Learn how this fragile and unique ecosystem maintains a perfect balance of life, and what we all can do to protect and preserve such a special place on planet earth!

Guided Bio Bay tour at night in Vieques with a kayak illuminating the bioluminescent water.
One of our lead guides awaiting kayakers

Our approx. 2-hour and 15 minutes (including check-in) guided bio bay CLEAR BOTTOM KAYAK excursion includes interesting interpretations about the reserve’s fragile ecological system, star constellations, and a fascinating encounter with millions of bioluminescent organisms. As you glide along in your kayak, experiencing this unusual nighttime phenomenon and seeing how fish light up their path like shooting stars in the water, you might get the feeling that the dark Caribbean sky is jealous of the glowing water below as it tries to catch up with streaking meteors and impressive constellations!

bioluminescent Kayak Experience

“Bienvenidos” to a unique and rare Bioluminescent Experience, an adventure not to be missed while on Vieques Island! Join JAK’s fully guided night trip into one of the most amazing natural phenomena of the world with our tandem CLEAR BOTTOM KAYAK! This pristine ecosystem teems with astonishing marine life, inhabiting a secluded bay protected by mangrove forests. You will meet our glowing friends, the Pyrodinium bahamense, a microscopic plankton capable of producing natural light at the touch of your hand! 

Close-up of a grouper fish camouflaged in the coral reef during a snorkeling excursion with JAK Watersports.
Healthy finger coral formations on the reef during a guided snorkeling tour with JAK Watersports.
Southern stingray resting on the sandy ocean floor during a snorkeling tour with JAK Watersports.

Cancellation Policy FAQs

Online Booking: You prepaid your tour and your cancellation policy is based on your group size, as detailed below.

Phone Reservations: To guarantee your spaces, we require your credit card number. Please see the applicable cancellation policy below based on your group size. 

JAK Water Sports has limited space for the Bioluminescent Bay tour. Once your reservation has passed the cancellation policy, no refunds will be issued. Please call us to change or cancel your reservation before your grace period ends. We will always send you a cancellation confirmation. 

Groups of 4 or fewer: to avoid the 100% no-show fee for unused spaces, cancel or change your reservation by 10:00 AM on the day of your tour free of charge! If you prepaid your booking, and need to cancel, do so before 10am of the day of your tour for a 100% refund.

Groups of 5+: to avoid the 100% charge for unused spaces, change or cancel your reservation prior to 48hrs in advance of your tour date free of charge. 48hrs prior to the date of your reservation, we charge the card on file for all spaces reserved by telephone. If you booked online and need to cancel or change your reservation, do so prior to 48hrs before your tour for 100% refund.

Reservations made on the day of the tour, regardless of group size, are non-refundable.

Online Reservations: prepay at the time you make the reservation. See the cancellation policy for details on refunds.

Phone Reservations, 

  • Groups up to 4 persons, pay at check-in. If you pay with your registered credit card, please bring it with you for your security and ours. Optionally, you can pay in cash.
  • Groups of 5+ persons, the CC on file is charged 48 hours before the date and time of your tour.

It is the client’s responsibility to arrive on Vieques Island in time for their reserved activities or the Bioluminescent Bay tour. Delays in travel to Vieques do not justify refunds.

The tour is not canceled on rainy days, as Puerto Mosquito is almost completely surrounded by a mangrove forest, so it remains safe and the water still sparkles in the rain. However, we make all decisions regarding cancellations due to bad weather, so please call us within your applicable courtesy period if you feel the weather might not be acceptable, as you will be charged if the tour goes out and you do not cancel your reservation according to our cancellation policy.

JAK Water Sports and Rental reserves the right to cancel or re-route any tour due to natural phenomena or unforeseen circumstances that make it difficult to conduct a trip safely. If we are unable to offer you another trip, you will be refunded the full amount paid.

Two Ways to Book!

Online Booking

Requires advanced payment in full. See our cancellation policy to receive a  refund if you are unable to join us.

An email confirmation with directions and further information is automatically generated from our reservation system. If your email didn’t arrive, check your SPAM folder, then give us a call and we will resend it.

Read the Travel & Ferry Policy carefully during the booking process, especially for Day Trippers returning to the main island the day of your tour or for those arriving the day of your tour.

Phone Reservations

We love to talk directly with our clients! For availability, trip times and reservations without advance payment, please call us at (787) 644-7112 with the following information:

Things to Know About Your Tour

We recommend flying to Vieques or, if by ferry, traveling a day early to reduce stress and enjoy an extra activity on Vieques or the beach. If you are traveling to Vieques by ferry on the same day as your Bio Bay tour, we highly recommend traveling in the morning to avoid delays on the ferry, especially during peak season, from December to April. Residents of Vieques have priority and visitors have been bumped to later ferry departure times, sometimes missing their bio bay departure time. Please remember the ferry is out of our control, and late arrivals do not constitute a reason for refunds.

Check ferry departure times and purchase tickets at PuertoRicoFerry.com. Please note that PR Ferry only sells approximately 20% of tickets online. The remaining tickets must be purchased at least 2 hours in advance at the ticket window in the terminal. Please read their cancellation policy, as we provide this information as a courtesy. There is paid parking at the Ceiba Ferry Terminal.

At our shop located at 136 Flamboyan Street on the south side of Vieques Island, in Esperanza.

Parking is available near the fishing pier and in front of El Blok Hotel on the ocean side of the road. Our store is less than a 5-minute walk from these dirt parking areas.

Clothing that can get wet: Long-sleeved shirt (temperatures drop at night certain months of the year) and shorts.

Chanclas / Flip Flops or Crocs. To keep our clear-bottom kayaks clean and scratch-free, you’ll need to remove your shoes on shore. We’ll help you store them in the kayak.

Insect repellent is optional. If you use one, choose one without DEET to minimize bay pollution and harm to bioluminescent dinoflagellates. We have DEET free repellant available for sale for your convenience.

Only our earliest tour may provide enough time to connect with the last ferry to Ceiba, depending on the current Puerto Rico Ferry schedule. 

Please consult with us prior to booking for logistical advice. You may call or email us.

Later tour times do not provide sufficient time for a same-day ferry return, therefore you will need to spend the night.

Need accommodations? For inspiration, try:

Please leave large bags at your lodgings, as there is no storage space in the kayaks or at the meeting point. If you bring a small bag, please take precautions to keep it dry, as this is a water-based activity.

Kayaking novices are welcome, and since most of our guests are first-timers, we provide a kayaking briefing and paddling instruction before each excursion.

Our kayaks have a combined weight limit of 178 kg or 385 pounds, with no single person weighing more than 280lbs. If you require special accommodations, please inform us when booking so we can accommodate them. JAK Water Sports reserves the right to allocate kayaks as needed.

JAK Water Sports operates in compliance with Puerto Rico’s DNER regulations. No tours are allowed in Vieques Bioluminescent Bay the day before, the day of, or the day after the full moon each month. Some months have two full moons.

If you are staying in Esperanza, our shop is in walking distance of your hotel or guesthouse.

If you are staying somewhere else on Vieques Island, call us or send us an email for a list of taxi drivers. 

This tour takes place in a natural environment. Although rare elsewhere, the bioluminescent phenomenon can be seen year-round in Vieques, however, all natural ecosystems are dynamic and their conditions can vary. Puerto Mosquito is known as a bright and stable bioluminescent bay, but the intensity of the glow may fluctuate due to unpredictable natural changes beyond our control. Most important – the glow is always there! ENJOY THE SHOW!

Safety and Physical Condition Restrictions

Please help us make this a pleasant experience for all! For safety and health reasons, those under the following conditions are not allowed to participate in kayaking excursions with JAK Water Sports.