Come see, hear and feel the adventure as you explore the captivating glowing water of Laguna Grande.

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Glowing Bay Adventure

The Highlights TOUR

Of your Adventure

This is the one adventure not to be missed while in Puerto Rico. Paddle your way through the mystical mangrove channels leading to “Laguna Grande”. There you will feel on another planet as the water comes alive in a magnificent glowing spectacle that must be seen to be believed!


The Glowing Bay Adventure Includes:


Basic Equipment

Kayak and US Coast Guard approved life jacket.


Expert Guides

Experienced eco-interpretive guide with CPR and First Aid certification.


Basic Training Lessons

Training and safety instructions prior the tour.



Low-intensity night time navigation lights.

safety icon


First aid and kayak towing equipment.


Optional Transportation

Transportation to “Kayak Village-Fajardo”  from selected hotels is available for an additional $25-per-person fee. Minimum of 8 passenger requiered for transportation.

Kayaks Top Image2
Level icon

Skill Level: Beginner

time icon

Duration: 2 Hours

Kid icon

Minimum Age: 6 Years +

Video Glowing Bay Gif

Glowing Bay Adventure


Island Kayaking Adventurers

An Unbelievable Experience

That you will never forget!

Glowing Bay Adventure

Questions? FAQ

The answers you need

Glowing Bay Adventure


What our adventurers say

  • 5 star ratingFamily adventure We booked this adventure and was my first time in this place and kayaking a ton night, we had so much fun and we learned about it too. My brother also joined us in this adventure and he loved the... read more

    VIVIAN S Avatar

    5 star ratingbioluminescent kayak tour Beautiful evening! I choose the right evening as the moon was small, so seeing the light of those flagellates was amazing. I also lucked out in being by myself that i had the pleasure of being in the... read more

    Wendyjan Avatar

    5 star ratingGreat fun!!! We heard about the Bio Bay kayaking tours and decided to try it. I did not plan ahead and found Island Kayaking through the resort concierge. The first few places I called were booked up but Island... read more

    Steve R Avatar
    Steve R
  • 5 star ratingExcellent trip to see the bioluminescence After reading various reviews we approached this will a little skepticism. As there were 5 of us I rented a car to drive here rather than rely on the minibus, and this gave us opportunity to look around Las Croabas... read more

    uktravailer Avatar

    5 star ratingAmamos Passeio imperdivel para quem visita Puerto Rico. Muito lindo e mágico.
    O passeio é muito bem organizado e o guia explica tudo sobre esse espetaculo da natureza.

    Francine A Avatar
    Francine A

    5 star ratingInspired Today we went to this tour in where Gary, Daniel, Diego and Nestor were the guides. They show us how to kayaking, constellations , satellites and bioluminescent bay. They took us pictures and gave some snacks. Puerto Rico is... read more

    Difu2021 Avatar
  • 5 star ratingWell worth it! Very friendly staff that shared a lot of knowledge about the area. Was a great experience and would definitely recommend!

    David W Avatar
    David W

    5 star ratingIsland Kayaking Adventure Trustable company, experience was excellent, I had fun, a lot of workout, use mosquito repellent ( they have, just in case you don't), they take you a picture when you get to the bio bay and you can get it... read more

    myrna b Avatar
    myrna b

    4 star ratingSo cool! Myself and my kids (18 & 21) really enjoyed this adventure! Well organized and Gary and his crew did a great job keeping everyone together. The bay was mesmerising!

    Gordy414 Avatar
  • 5 star ratingMemorable!!! Excelente experiencia, me arrepentí de seguir el consejo de no llevar mi celular ya que la unica foto que toman es al inicio. Pero fue una gran experiencia y quedará grabada en nuestra memoria y en la de mis niños.... read more

    FigueroaIsayra Avatar

    4 star ratingBio is awesome, Tourists are not We chose this company for the tour because all others were booked. I'm glad we did. They were cheaper than the other companies, and their guides were awesome. The bio-luminescence is a sight to see - very magical.

    The group we...
    read more

    Arkelope Avatar

    5 star ratingIsland Kayaking Adventure Excellent time. Miguel was our group leader. He was straight forward and funny. Very personable. Please bring a change of clothes as you will get wet. I recommend that you give yourself some time to get to the meeting point.... read more

    Irishcav104 Avatar
  • 5 star ratingIncredible! Our kayak trip on the Bio Bay was the highlight of our trip to Puerto Rico. I was a bit wary since we booked last minute and all of the other companies were booked up, but Island Kayaking Adventure... read more

    Emily H Avatar
    Emily H

    5 star ratingGrandioso! Fue mi primera experiencia en kayak y fue excelente, nos encantó. El equipo fue grandioso, especialmente Diego que nos remolco en el camino y nos contestó preguntas.

    La laguna y el paseo por los mangles fue increíble. Pudimos ver el...
    read more

    V6199FQshirleyr Avatar

    4 star ratingFirst time kayaking We weren't sure about kayaking for the first time -- in the dark--among mangrove trees. We were cautioned that the bio bay was going through a transition and would only sparkle and not glow. We wanted to... read more

    Miss710 Avatar
  • 5 star ratingBioluminescent kayak tour AWESOME!!!! What else is there to say.The guides where excellant. The weather was a bit windy , but once in the canal, it was peaceful. If you are scared of the dark, this may not be the... read more

    Escottok72 Avatar

    5 star ratingHighlight of our trip! I've never kayaked before, and was nervous from reading some reviews. It was SO EASY! Took absolutely no strength at all. The water was so calm and smooth, we just coasted along. The pitch dark mangrove was so... read more

    chiromommy Avatar

    5 star ratingVery Interesting Kayak Trip at Night! We headed out to Las Croabas to meet up with Island Kayaking Adventures about 8:30 pm. We were told it would be a good night for this bio-bay kayak trip because the moon was new and not bright at all... read more

    Christine P Avatar
    Christine P
  • 5 star ratingamazing!! My wife and i did kayaking for our first time ever. They gave us a 5-minute tutorial and we were on our way. We started at the head of the group and going with the current down the canal. Our... read more

    josemU271PG Avatar

    5 star ratingGreat kayaking adventure - sparkling waters! We were staying at the El San Juan Resort & Casino and their Bio Bay packages were sold out. So we booked our trip through the group on the beach. The company was called New Horizons.Sandy our tour guide (who... read more

    QueenMJC Avatar

    5 star ratingAn adventure like none other This was a great activity in Puerto Rico. We went out around 6:30pm and I recommend this time over the later time as there is still daylight when you head out in the kayaks through the mangroves. The... read more

    Erica J Avatar
    Erica J
  • 4 star ratingGreat Adventure Package! A van picked us up from the hotel and drove us to Fajardo. We were supposed to start at 8pm but the previous batch was delayed. We did not start until about 9:30pm. It was better anyway since it was... read more

    Ina A Avatar
    Ina A

    5 star ratingBio Bay Night Kayak Adventure Very awesome! Rates up there as one of the best things I have ever done in my life! Do the night tour where you see the bay light up as the water glows when you touch it! Water is shallow... read more

    121travelers2 Avatar

    5 star ratingGreat tour. Informative and fun! Tour guide Diego was the best! He helped my 12yr old daughter and I and was so patient and kind. Our experience would not have been the same without him!

    Bkgyal718 Avatar
  • 4 star ratingAn adventure Our family (two kids7 and 8)enjoyed this adventure very much.

    We started off at about 615 in the dark. Once we reached the mangrove canal it was pitch dark. It was easy to paddle right into the tree branches as...
    read more

    AtlantaLucky7 Avatar

    5 star ratingMagical The bay exceeded my expectations and the float through the mangroves was magical. It was challenging paddling against the current on the return trip but the guides made us feel safe.

    603tiffanieg Avatar

    5 star ratingVery professional! We had been very excited to go on the glowing bay adventure excursion and then had a problem and couldn't get there. Island kayaking adventures treated us very fairly and professionally. We will definitely book with them the next time... read more

    karengN5378XK Avatar
  • 4 star ratingBio-bay Tour 45$ p.P.
    Tolles Erlebnis, magische effekte, aaaaaber:
    Wir haben uns für diesen Preis und die angesetzte Zeit mehr erhofft. Das paddeln war Spaß und hat die Spannung aufgebaut ubd mit Sicherheit auch die Belohnung attraktiver gemacht, dennoch sind 10 Minuten Verweildauer im...
    read more

    Frederic S Avatar
    Frederic S

    5 star ratingKayaking en Bio bay Son puntuales un gran servicio y atención. El recorrido es maravilloso. Tienen el cuidado de hacer sentir atendido a todos por igual. El equipo de trabajo es muy bueno y los Kayaks están en muy buen estado. Ofrecen meriendas y... read more

    Damaris S Avatar
    Damaris S

    5 star ratingBio bay fajardo Hello, I took the tour yesterday, 09.02.2019 and it was incredible! Perfect experience of seeing the lagoon shining because of the dinoflagellates! in addition, the staff that accompanied us were extremely helpful, both before and during and after the tour.... read more

    joanarf22 Avatar


Things To DoTO DO

In Fajardo

Fun Activities

Sea Ventures
Scuba diving excursion, classes and snorkeling tours.

Paradise Seekers
Waterfall Slides Adventures on natural swimming pools.

Where to eat?

Las Vistas Cafe
For Breakfast or Brunch we loved it.

El Bohio Restaurant
Is one of our favorite places to eat local and fresh sea food.

Lodging Around

Fajardo Inn

Sueños del Mar
Vacation Rentals