The 15 Best Bio Bay Tours in Puerto Rico

Bio Bay Kayak Tour in Fajardo - What happens in the glowing lagoon

★★★★★★★★★★4.5 · 1,762 reviews · from $89Our pick

Paddle through Fajardo’s mangroves to Laguna Grande, where microscopic plankton glow blue at your touch on this guided night kayak tour.

“We could not see any bio illumination. Would not have booked the excursion had I known it wasn’t going to be visible. Paid $400 for a night kayak tour for 4. Way too many people trying to fight their way through the mangrove. Not sure why there were boats traveling at the same time, seemed dangerous for the people trying to get out of their way”

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Puerto Rico Bio Bay Kayak Adventure Tour

2.Puerto Rico Bio Bay Kayak Adventure Tour

★★★★★★★★★★4.5 · 1,581 reviews · from $65

Paddle through mangroves to Laguna Grande, where plankton glow blue-green around your kayak. A short, guided night adventure in Fajardo.

“Had a wonderful time with this tour! The guides were fantastic and very attentive to the entire group. They answered all questions knowledgeably and made sure everyone was safe and comfortable.”

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Bio Bay Kayak Tour in Fajardo

3.Bio Bay Kayak Tour in Fajardo

★★★★★★★★★★4.5 · 1,438 reviews · from $66

Kayak Fajardo’s Laguna Grande with marine biologists, paddle through mangroves, and watch bioluminescent water glow at dusk or under stars.

“Very fun way to end a busy day. There were a few tour guides that helped out throughout, the lead guy for us was Eli. The tour is pretty relaxing, as you are navigating a network of mangrove roots. Once you get the hang of operating the kRead more”

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

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

★★★★★★★★★★5.0 · 1,216 reviews · from $183Top rated

Review of Puerto Rico’s El Yunque and Laguna Grande combo tour, with rainforest swimming, rock slides, kayaking, transport, costs, and practical tips.

“Danny and Jami were great on the hike and Miguel and Lori were awesome on the kayak trip. Would recommend but be ready for a lower and upper body workout!”

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Bioluminescent Bay Kayak Trip from Vieques

5.Bioluminescent Bay Kayak Trip from Vieques

★★★★★★★★★★4.5 · 1,112 reviews · from $65

Kayak Vieques’ glowing Mosquito Bay with clear-bottom boats, small groups, and guides who explain the science and stars.

“We found out this is not a licensed company to be doing tours in the bio bay. We were expecting to have more guidance and factual information about the bay itself. We were 10 people crowded into an old church van that barely made it to and from the lagoon. We were told that we could not wear water shoes or any foot protection because we would be walking shin deep in mud flats. My husband and I were given an inadequate sized kayak that took on water and needed to get into another kayak which led to my husband falling into the water. Fortunately it was not deep so…”

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Hike El Yunque Rainforest and Kayak Bio Bay Combo Tour

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

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

Hike El Yunque, swim beneath waterfalls, and kayak Puerto Rico’s glowing Laguna Grande on a demanding 12-hour nature adventure.

“Our tour was fantastic. It is physical. You will get wet. The correct shoe is important. Jayson was terrific with Bespoke.”

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Overnight Bio Bay Kayak Tour in Vieques Island

7.Overnight Bio Bay Kayak Tour in Vieques Island

★★★★★★★★★★3.5 · 549 reviews · from $65

Paddle Vieques Bio Bay at night, watch each stroke glow, and learn the science behind the magic on a practical, budget-friendly kayak tour.

“I expected more from this tour by looking at the pictures. I saw bioluminescent but not as much as they showed in the pictures. My friend and I were drifted away by the currents and had a hard time getting back to the group. The instructor was not very helpful. They didn’t even take a single picture for us”

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

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

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

Review of La Parguera’s bioluminescent bay boat ride from San Juan, with swimming, hotel transport, timing, value, and practical tips.

“The best experience ever; the entire crew was super happy, helpful, and entertaining. My man jumped in the water and made the show for all of us. The best experience ever; the entire crew was super happy, helpful, and entertaining.”

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Bioluminescent Bay Night Kayaking Adventure in Puerto Rico

9.Bioluminescent Bay Night Kayaking Adventure in Puerto Rico

★★★★★★★★★★4.5 · 439 reviews · from $80

Paddle through Fajardo mangroves to Laguna Grande, where plankton may glow beneath your kayak. Practical tips, costs, safety, and honest advice.

“This is a MUST DO! There are only 5 places on earth to experience bioluminescence, this is one of them. Pedro and all the folks at Island Kayaking were quick to get us onboard and get to our kayaks. They were very informative and also made it fun with their humor. Really just do it, you’ve come all the way to Puerto Rico, this is a must do.”

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La Parguera Glowing Bioluminescent Bay Boat Tour from San Juan

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

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

Swim in La Parguera’s glowing bioluminescent bay on an intimate day trip from San Juan, with local food, a boat ride, and hotel pickup.

“This is how to experience a bioluminescent bay - swimming in it! It’s worth the money instead of kayaks and boat.”

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Puerto Rico: Bio Bay Swim and Sunset Charter or Late night tour

11.Puerto Rico: Bio Bay Swim and Sunset Charter or Late night tour

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

Swim through La Parguera’s glowing bioluminescent bay after a sunset sandbar stop on this small-group Puerto Rico boat tour.

“This was a wonderful experience. Hector and Capt. Ferrell were excellent hosts. Don't hesitate to book this excursion. Even if you don't swim it's still an enjoyable experience that you will remember.”

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Vieques island Biobay Kayaking Tour

12.Vieques island Biobay Kayaking Tour

★★★★★★★★★★5.0 · 256 reviews · from $60

Review of Vieques biobay kayaking in clear kayaks, with practical advice on timing, moonlight, transport, cost, and what to expect.

“What a great tour. It's fun. Something you'll never see unless you come here. The guide were funny and informative. Highly suggest”

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Bioluminescent Boat Tour in Mosquito Bay, Vieques

13.Bioluminescent Boat Tour in Mosquito Bay, Vieques

★★★★★★★★★★4.5 · 227 reviews · from $100

See Mosquito Bay glow from a quiet electric catamaran on Vieques, with guides, star views, easy boarding, and small groups of up to nine.

“Excellent! Much better than a Kayak tour, very lovely evening and a truly enchanting experience. Highly recommend.”

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Puerto Rico Sunset Magic: Bio Bay Kayaking Tour from Fajardo

14.Puerto Rico Sunset Magic: Bio Bay Kayaking Tour from Fajardo

★★★★★★★★★★5.0 · 199 reviews · from $66

Kayak Fajardo’s Laguna Grande with a marine biologist, mangroves, sunset, wildlife, and glowing water for $66.90.

“Fun kayaking through an area you would not see otherwise. Neat experience kayaking in the dark and seeing the bay, but when it's time to see the luminescence, they put all kayaks tight together and cover with tarp. You need to hold the tarp up with one hand and use your other hand to splash the water to see them "light up". However, the kayaks are crammed in so the person in the front can't fit their hand in the water without it being jammed between twi kayaks. What was thought to be the highlight of the trip was disappointing so 4 out of 5 stars. Redeeming factor, as you…”

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Bio Bay Magic and Rum Tasting Tour from San Juan

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

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

Review of San Juan’s full-day bio bay and rum tour, with El Castillo Serrallés, tacos, mountain views, sunset, and a glowing swim.

“This was terrific! Such a memorable day and evening. The guide and the boat captain were terrific. It's a lot of driving but the mountain scenery is gorgeous and the guide (driver) talks a lot about the towns you go through which is very interesting. The swimming in the bay is wonderful and so is the bioluminescent bay. Highly recommend!”

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