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The sun is down, but your adventure is just beginning as you paddle through the glowing waters near San Juan on this 4-hour bioluminescent bay kayak tour. Explore this legendary natural phenomenon by boat, observing as the water beneath you glows and sparkles, thanks to simple movements of your hand or paddle. It’s a once-in-a-lifetime experience that’s not to be missed. Your tour includes round-trip transportation from your San Juan hotel, plus a guide.


  • Kayak adventure on the bioluminescent bay
  • Enjoy spectacular sunset and nighttime views of the Fajardo area
  • Swim in the waters as they glisten around you
  • Hotel pickup and drop off included

Recent Photos of This Tour

What You Can Expect

Bioluminescent Kayak Adventure from San Juan

Bioluminescent Kayak Adventure from San Juan

Explore the eerie glowing waters of one of the world’s only bioluminescent bays on this magical 4-hour nighttime kayak trip. Few experiences compare to a boat ride on this sublime body of water, where you can simultaneously admire the surreal glow of tiny plankton below and a dramatic sky blanketed with stars above.
Start your evening with a pickup at your hotel in San Juan between 4 and 6pm for the quick ride to the bay. Once you arrive, your kayaking adventure begins at sunset, the historic lighthouse of Fajardo visible in the distance. Soon you reach the Las Cabezas de San Juan Reserve, site of this amazing natural light show and one of only five such sites in the world. Gaze in wonder as your paddle and hand movements stir the water, setting off the glowing displays of tiny plankton that cause the phenomenon. 
At the end of your boat trip, you return to your transportation for the ride back to your San Juan hotel, still exhilarated from your fun nocturnal adventure.
Important note: Unfortunately due to natural causes the bioluminescence is glowing very inconsistent at this time. Natural debris carried by the current may affect visibility.  When there is a Full Moon the glow effect is also affected. In order to improve the visibility, guides may use black tarps to cover the kayaks and riders; this promotes darkness and provides a greater appreciation of the microorganisms. Guests will still be able to enjoy the rest of the experience including the paddling lesson, kayaking through the mangrove channel and the observation at Laguna Grande, which is a wonderful experience, but expectations need to be clear as the glow may be very low and we want to avoid any claims. This is a natural reserve and some conditions caused by nature can’t be controlled

Customer Reviews

michelle c

5 star rating: Highly Recommended January 2017

This tour was great! The guides were funny and helpful. We were brand new kayakers and they were very patient with us.


5 star rating: Highly Recommended October 2016

This was an amazing kayak experience that is beyond words to describe. We did very well overall even though we lacked the experience of kayaking. The guide gave very good kayak instructions for us. The bioluminescent bay is phenomenal. The best way I can describe it is when you paddled or put your hand in the water and moved it about it made the organism spark. It looked like the sparkles a fireworks sparkler makes to me. It was a bucket list trip and a must see.


5 star rating: Highly Recommended August 2016

Excellent! Everything was very organized and ran on schedule. The staff was knowledgeable, friendly and very patient. The bioluminescent was not as vivid as portrayed in the pictures but it was nice to see and definitely something you should at least see once in your life time. I brought my 67 year old mother with me and she had a wonderful time.

haagc69 Canada

5 star rating: Highly Recommended December 2015

Great staff, great excursion, unfortunately the bioluminescence was not as vivid as I had hoped.

mauricio g

5 star rating: Highly Recommended November 2015

Could you please send me the Facebook page name to check my pictures

Jeffery J

5 star rating: Highly Recommended August 2015

Wonderful experience with the best guides

Vanessa S

5 star rating: Highly Recommended March 2015

Great team building excerise! For anyone like siblings couples co workers even friends it's not only beautiful , amazing and a hard workout but great to work together. After check out the f

Gary C

5 star rating: Highly Recommended March 2015

Wonderful experience and do recommend it. GREAT STAFF!!!!!! Very helpful and enjoyable!!

Bonnie Y

5 star rating: Highly Recommended March 2015

Amazing trip! We got poured on the last five minutes while we were trying to dock which made for quite the exciting end! I would definitely do this again!

Christina C

5 star rating: Highly Recommended December 2014

Seeing the water light up at night with each stroke of the oar was great. We were happy that the tour picked us up because we would have never found it on our own.
The canal from the bay was crowded but because everyone wants to go. Guides were okay.

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