14 Bioluminescent Bay Tours in San Juan to Build a Day Around

1.Two-in-One Day Trip: El Yunque and Bio Bay Tour with Transport

★★★★★★★★★★5.0 · 1,216 reviews · from $183Our pick

Spend about 12 hours moving from El Yunque’s muddy trails and river pools to Laguna Grande’s glowing water. Guides such as Amaury, Bradley, Jami, Miguel, and Lori lead the hike and kayak sessions. Expect wet shoes, upper-body work, safety checks, dinner at your own cost, and a long but memorable day.

“Brilliant day, well planned and lovely tour guides. The rainforest is amazing, the tour guides gave us lots of great info and made the day so fun, sliding down the rock slides and jumping into the water and the rope swing were great. Dinner was Read more”

Check availability →Read our full review

2.Hike El Yunque Rainforest and Kayak Bio Bay Combo Tour

★★★★★★★★★★4.5 · 1,010 reviews · from $172

Join guides such as Jason, Adriana, George, or Chris for a muddy El Yunque hike with rope swings, natural slides, and optional cliff jumps. After lunch, paddle a two-person kayak through dark mangrove channels to Laguna Grande. Pickup is available in San Juan, but expect a long, physical day.

“We did El Yunque and bioluminescent tour. Our tour guides Chris and Frankie were AMAZING, HIGHLY recommend them as your tour guides they are very charismatic and very knowledgeable! After the hike, natural waterslides, and rope swing they drove us to get lunch and from there we switched buses to do the bioluminescent kayaking. The moon was so bright it was hard to see the water light up, that is out of their control. However, they did make it possible to see the bioluminescent by covering all our kayaks with big tarps and we were able to experience it that way. Great full day trip experience a MUST to do…”

Check availability →Read our full review

3.La Parguera Bio Bay Boat Ride and Swimming w/ San Juan Transport

★★★★★★★★★★4.0 · 534 reviews · from $54Best value

Ride from San Juan to La Parguera, learn about glowing dinoflagellates, then take a motorboat to the protected bay. You can swim for about 20 minutes or stay aboard. Guides such as Juan, also called J.R., are often praised for friendly island commentary and careful service.

“Our guide Juan was awesome telling us about the island. The ride from San Juan to the location was nice as he explained both about the bioluminescence location and the history Of the island. Super cool experience to swim with like lights all around you.”

Check availability →Read our full review

4.La Parguera Glowing Bioluminescent Bay Boat Tour from San Juan

★★★★★★★★★★4.5 · 314 reviews · from $220

Ride from San Juan to La Parguera with guides such as George or Felix, stop for a local meal, cruise through mangroves, swim at a cay, and watch dinoflagellates glow after dark. The small-group trip includes water, beer, appetizers, and round-trip transport.

“Wonderful outing. Beautiful sight….enjoyed the sand bar and the bioluminescent bay. A highlight of our trip.”

Check availability →Read our full review

5.Bio Bay Swim and Sunset Charter or Late night tour

★★★★★★★★★★5.0 · 258 reviews · from $65

From Mareaito Charters in Lajas, you’ll spend about two hours swimming at a La Parguera sandbar, watching sunset, and playing in glowing bioluminescence. The small boat carries up to 13 people, with floaties provided. Guides including Ryan, Hector, Adriana, and Captain Fiol are known for clear safety help and local insight.

“Definitely bring towels and snorkel gear! At the sandbar you will snorkel with tarpon and in the bio bay you can get a close up glimpse of the sparkles under water!”

Check availability →Read our full review

6.Bio Bay Magic and Rum Tasting Tour from San Juan

★★★★★★★★★★4.5 · 152 reviews · from $250

Travel from San Juan to southern Puerto Rico with a local guide such as Steven or Cruz. Visit the Ponce rum stop, eat three tacos in La Parguera, watch sunset from a boat, and swim in glowing water beneath the stars. Pickup, dinner, equipment, and return transport are included.

“We enjoyed this experience. The restaurant for lunch was good. We didn't feel rushed. They arrived on time and ensured everyone enjoyed the boat.”

Check availability →Read our full review

7.Bio Bay Night Kayak Tour with Transport from San Juan

★★★★★★★★★★4.5 · 128 reviews · from $115

Leave San Juan around 4:00 pm for Fajardo and paddle with guides such as Joe, Emily, AJ, or Nichi through the mangroves of Laguna Grande. No kayaking experience is needed, but you must swim and weigh no more than 250 pounds. The return trip in darkness can be the highlight.

“The excursion from start to finish was awesome. The Driver picked us up at El San Juan Hotel was on time and super friendly. The experience was great from the people at the booth to the guides were awesome!! Good time had by all.”

Check availability →Read our full review

8.Bio Bay Night Kayaking with Transport from San Juan Area

★★★★★★★★★★4.5 · 126 reviews · from $125

You’ll paddle at sunset through Laguna Grande’s mangrove channel, then reach the bioluminescent bay after dark. Guides such as Joe, Emily, AJ, Jaime, and Nichie help with navigation, instruction, and towing when needed. Round-trip transport from San Juan and all kayaking gear are included.

“When they say bring bug spray, what they really mean is they will gather you up “to feed the mosquitos” as they said, literally. Unnecessary exposure. They could have done the instructional in the plaza or parking lot. I have 100+ bites (100Read more”

Check availability →Read our full review

9.Vieques Bio Bay Tour and Beach Day Trip from San Juan by Ferry

★★★★★★★★★★4.5 · 106 reviews · from $230

Travel from San Juan to Vieques by ferry for a beach stop, dinner time in Esperanza, and a guided clear-bottom kayak trip on Mosquito Bay. Guides such as Rafael and David handle the long day, transfers, and glowing-water experience for a group of up to 12.

“Punctuality of service. However, the guide in Spanish was not adequate, although it is confirmed in the booking. We did not receive the same level of guidance as in English, they were brief comments and we had to report or clarify in each stage of the tour. This should be coordinated and guaranteed by the agency or failing that indicate that only the guide is in English and we as tourists decide which option to take. Puerto Rico has Spanish as its official language and it was a hassle for us.Auto-translated”

Check availability →Read our full review

10.Full-Day Tour: El Yunque, Luquillo Beach, Bio Bay Night Kayaking

★★★★★★★★★★4.5 · 98 reviews · from $155

Spend a full day outside San Juan with guide-led stops at La Coca Falls, El Yunque, Yokahu Tower, and Luquillo Beach, then kayak through mangroves to Laguna Grande. Guides such as Rafael, Ingrid, and Emily are praised for their humor, local insight, and patient help on the water.

“Don't know if this was the cheapest one. It sure looked like it though. Most of the people were friendly. The kicker was that on the bioluminescent bay the lead guide sort of ditched us. I was rammed multiple times by other guests. I backed up to get out of their way and the lead guide just sort of took off. She couldn't have heard me screaming at her if she tried. I lost complete view of her in the middle. She stopped 2 times and then took off each time. The trip up to that point was okay. I would have been happier just driving my self for the…”

Check availability →Read our full review

11.Fajardo Bioluminescent Bay Night Kayak Adventure from San Juan

★★★★★★★★★★4.5 · 67 reviews · from $109

Ride from selected San Juan hotels to Fajardo, then paddle a tandem kayak through a narrow mangrove channel into Laguna Grande. Guides such as Emily and AJ explain the ecosystem in English or Spanish. Expect wet clothes, mosquitoes, darkness, and bioluminescence that may appear as faint sparks or a bright blue glow.

“The night kayak alone was super fun! Even with low bioluminescence! AJ and Emily (and one more!) were super nice as well and Angel’s pick up was professional, kind and timely! Great experience!”

Check availability →Read our full review

12.Bioluminescent Bay Chiliboats Waterbike Tour in La Parguera

★★★★★★★★★★5.0 · 60 reviews · from $79

Ride a USCG-certified double Chiliboat into La Parguera’s phosphorescent bay. Guides such as Mary, Waldie, and Mariemma explain the dinoflagellates and help you spot the glow. The boats are steady and easy to pedal, but you should expect wet clothes, darkness, and roughly 25 minutes of pedaling each way.

“What amazing experience! We picked this adventure to see the bioluminescent bay because of it was eco friendly and it delivered! The owners/tour guides were knowledgeable & friendly! We highly recommend!”

Check availability →Read our full review

13.Puerto Rico’s Only Private, VIP & Filmed Bio Bay Swim Experience

★★★★★★★★★★5.0 · 48 reviews · from $429

Carlos Alexis or another private guide drives you from San Juan to La Parguera, where a USCG captain takes you snorkeling, sunset cruising, and swimming in bioluminescent water. The tour includes gear, drinks, and professional video footage, with dinner listed separately.

“We had an amazing time. Carlos and Marcos were truly a pleasure to spend the day with. They were both informative and made the trip fun. My daughter always wanted to see it and I was so happy that we were able to experience it together. Visiting the bioluminescent bay is a truly one-of-a-kind experience that you shouldn't miss in Puerto Rico.”

Check availability →Read our full review

14.Trio Tour: El Yunque, Luquillo Beach, and Bio Bay Night Kayaking

★★★★★★★★★★4.5 · 34 reviews · from $155

Spend a full day with guides such as Rafael, Louis, Angel, Donatello, or Edwin, hiking muddy El Yunque trails, swimming in a rainforest river, visiting Luquillo’s food kiosks, and kayaking through Laguna Grande at night. Pickup, transport, park entry, and kayak admission are included.

“Angel and Rafeal were excellent tour guides and we had a blast! Thank you again! First time in Puerto Rico was amazing!”

Check availability →Read our full review