Bioluminescent Bay Tours in San Juan Compared: The Top 6

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

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

You’ll hike, wade, scramble, slide, swing, and swim in El Yunque with guides such as Amaury, Bradley, Jami, and Rene, then kayak through mangroves to Laguna Grande. Transport, equipment, fruit, snacks, refreshments, safety training, and rainforest photos are included. Expect a demanding 12-hour day, with dinner purchased separately.

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

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

Spend about 12 hours hiking muddy river trails in El Yunque, swimming, sliding, and rope swinging before a nighttime kayak through Laguna Grande. Guides such as Jason, Adriana, George, and Chris lead the rainforest portion, while a separate eco-tour team handles the bio bay. Bring sturdy shoes, water shoes, a towel, and patience for a long day.

“It can be very slippery so watch your steps. The guides were wonderful, and watchful for the group. We had 11 family members from 9 to 68 in ages.”

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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 in an air-conditioned vehicle, then board a motorboat for 45 to 60 minutes on the water. You can swim for about 20 minutes among glowing microorganisms, or stay aboard and watch. Guides such as Juan, also called J.R., are praised for island stories and attentive service.

“This was one of our favorite experiences in Puerto Rico! It was amazing! The water was extremely beautiful and glowing! It was a great time!”

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

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

Travel from San Juan to La Parguera with a guide such as George or Felix, stop for local appetizers, watch the sunset from the water, and swim near glowing dinoflagellates after dark. The small-group tour includes hotel pickup, a boat ride, water, beer, and a chance to visit a sandbar.

“The most amazing experience. You’ll never do anything more incredible. Felix was so kind, the food was amazing, the beauty of swimming in something like that is something words cannot describe. Highly recommend.”

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

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

Meet Mareaito Charters in Lajas for a two-hour boat trip to a sandbar and La Parguera’s swimmable bioluminescent bay. The sunset option includes a warm-water swim, possible tarpon sightings, and about 30 minutes in the glowing bay. Captains such as Ryan, Brian, and Fiol and guides including Hector and Adriana have led recent trips. Late-night tours skip the sunset stop.

“Pro tip: forget your phone and camera, and just be present in a fleeting moment. The Phytoplankton are camera shy, plus, you don’t want to be handling your phone in the dark in the water anyway.”

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

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

From San Juan, ride through Puerto Rico’s central mountains to Ponce for barrel rum tasting, then continue to La Parguera for tacos, a sunset boat trip, and a swim in glowing bioluminescent water. Guides such as Steven and Cruz are known for lively island commentary. Expect roughly 9 to 10 hours, much of it on the road.

“There is a lot of driving involved in getting to the right location, but it is worth it. The food was delicious, and the bio bay was magical. It was crazy to swim in the bay and see your body glow with the bioluminescence.”

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