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    El Yunque National ForestAttraction in Río Grande, Puerto Rico, Puerto Rico

    Fort MorroAttraction in San Juan, Puerto Rico, Puerto Rico

    La FortalezaAttraction in San Juan, Puerto Rico, Puerto Rico

    Luquillo BeachAttraction in Luquillo, Puerto Rico

    Cathedral of San Juan BautistaAttraction in San Juan, Puerto Rico, Puerto Rico

    Coral World Ocean ParkAttraction in Smith Bay, St Thomas, U.S. Virgin Islands

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  • Explore Fajardo
  • Places to see
  • Things to do
  • Top sights
  • Outside Fajardo

Bioluminescent Bay, Fajardo

Icacos Island

Laguna Grande, Fajardo

Puerto Del Rey Marina

Fajardo Lighthouse

La Cordillera Reef Nature Reserve

Puerto del Rey Marina

Nearby destinations

San Juan, Puerto Rico tours

Luquillo tours

Culebra tours

Condado tours

Charlotte Amalie tours

Red Hook, Saint Thomas tours

Nearby sights

El Yunque National ForestAttraction in Río Grande, Puerto Rico, Puerto Rico

Fort MorroAttraction in San Juan, Puerto Rico, Puerto Rico

La FortalezaAttraction in San Juan, Puerto Rico, Puerto Rico

Luquillo BeachAttraction in Luquillo, Puerto Rico

Cathedral of San Juan BautistaAttraction in San Juan, Puerto Rico, Puerto Rico

Coral World Ocean ParkAttraction in Smith Bay, St Thomas, U.S. Virgin Islands

  • Top experiences
  • Outside Fajardo

Snorkeling

Diving

Hiking

Canoe & kayak tours

Speed & jet boat tours

Quad & ATV tours

Pub crawls & bar tours

Explore more things to do in Fajardo

Things to do in San Juan, Puerto Rico

Things to do in Luquillo

Things to do in Condado

Things to do in Charlotte Amalie

Things to do in Red Hook, Saint Thomas

Explore more things to do in Fajardo

Fajardo: Bioluminescent Lagoon Kayak or Full Moon Kayak Tour

Top rated
4.7 out of 5 stars
4.7
183 reviews
Activity provider:
Puerto Rico Bio Bay Tours LLC
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Fajardo: Bioluminescent Lagoon Kayak or Full Moon Kayak Tour
Likely to sell out
Top rated
4.7 out of 5 stars
4.7
183 reviews

Experience the bioluminescent lagoon kayak adventure, and see the glowing waters of Laguna Grande – 1 of only 5 year-round bioluminescent lagoons in the world.

About this activity

Free cancellation
Cancel up to 24 hours in advance for a full refund
Reserve now & pay later
Keep your travel plans flexible — book your spot and pay nothing today.
Duration 3 hours
Check availability to see starting times
Live tour guide
English

Highlighted reviews from other travelers

5
5 out of 5 stars
T
Trevor – United States

Guides were great, and the bio bay was very cool. The kayaking was kind of chaotic, especially when we were trying to pass by another tour group going the opposite direction in the narrow channel. Still fun, but might be kind of scary for inexperienced kayakers.

5
5 out of 5 stars
M
Megan – United States

Guides were very knowledgeable and fun. Felt safe due to the briefing and their experience. Bioluminescence was strong that night! Highly recommend.

Select participants and date

Participants

Itinerary

  • Starting location:

    Puerto Rico Bio Bay Tours LLC.

  • Bioluminescent Bay, Fajardo

    Safety briefing (45 minutes)

  • Bioluminescent Bay, Fajardo

    Guided tour, Kayaking, Scenic views on the way (2 hours)

  • Bioluminescent Bay, Fajardo

    Welcome refreshments (15 minutes)

Main sites passed
Other sites passed

For reference only. Itineraries are subject to change.

Highlights

  • Visit the Puerto Rico's amazing bioluminescent lagoon
  • Experience stunning views of the mangroves & birds on full moon nights
  • See the entirety of Laguna Grande, and relax in the water with smaller groups!
  • See the bioluminescent lagoon with the original tour operator.

Full description

Don’t let your day end when the sun goes down.

Enjoy a relaxing kayak tour at sunset that leads to the fascinating Laguna Grande in the town of Fajardo located on the Northeast corner of the island. Under a blanket of the night sky and the historical lighthouse, you can touch the waters that glow with bioluminescent organisms.

The activity starts at sunset in the small fishing village of Las Croabas where you meet the friendly guides. Check-in and get equipped with all the gear, including botanical-based insect repellent. Get the Kayak 101 Safety training, then board your kayak.

Paddle across a small fisherman’s harbor to the entrance of Las Cabezas de San Juan Reserve. Here, you enter a mystical channel that leads to a peaceful place where the mangroves create natural tunnels and the sights and sounds of wildlife surround you.
After a 25- to 30-minute paddle through the channel, based on traffic and tidal currents, your guide stops once in the lagoon to give commentary on the following points of interest:

• Mangrove forest and the different species
• Birdlife that inhabits the area
• Aquatic marine life that uses the lagoon as an estuary
• Information on the bioluminescence organism
• History of the lighthouse
• Insight on seven of eight ecosystems found in the area

Afterward, enter the lagoon called Laguna Grande (large Lagoon), where you paddle along the edge of the mangrove forest and watch the stroke of each paddle light up a bioluminescent blue-green/white-green.
Encounter fish that look like shooting stars as they swim through the thick concentration of Pyrodinium Bahamense, a species of Dinoflagellate. At the breakpoint, admire beautiful views of the rainforest and the lighthouse of Fajardo, accompanied by good conversation.
Next, begin the route to Bird Island to view the many birds that roost there overnight. Once quietly rounding the small island, start the return to the departure site. This tour is offered under the full moon cycle, so checking what the moon phase is recommended.

MOST ASKED QUESTIONS:
Are we getting wet?
Yes, you will get wet during this tour. Bring a change of clothes or towels.
Kayaks are on a line in the water so it requires participants to go about knee or below waist deep, in the water to sit on the kayaks. Our guides will assist all guests during this process.

Are we going open ocean?
We go through about 10/15 minutes paddle through the harbor of Las Croabas which may look intimidating for some, we go around the boats in the harbor, but still inside the protected reef, but we do not go open ocean. The remaining of the tour is through a mangroves canal and inside de lagoon.

Can you wait for us if we are late?
Unfortunately, we cannot. The guides will allow a 5 to maximum 10 minutes buffer but not any longer than that.
NOTICE: Late Arrival, No show, not meeting requirements for participation. Last minute change of mind or back outs, are not refundable.

Includes

  • Kayaks (doubles), backrests, paddles and leashes, life-jackets (PFD’s)
  • Botanical based insect repellent
  • CPR and First Aid certified guides
  • Commentary of the surrounding area
  • Assorted snacks and cold bottled water
  • Transportation
  • Towels
  • Gratuities (optional)

Not suitable for

  • Children under 6 years
  • People with back problems
  • People with heart problems
  • People prone to seasickness
  • People over 230 lbs (104 kg)
  • People with recent surgeries

Meeting point

Puerto Rico Bio Bay Tours llc Kiosko, at the very end of Road 987, Cabezas de San Juan, Fajardo Puerto Rico 00738. Across the street from Ocean View Restaurant.

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Important information

What to bring

  • Change of clothes
  • Flip-flops
  • Water shoes
  • Motion sickness prevention
  • Quick-dry clothing

Not allowed

  • Pets
  • Smoking
  • Intoxication
  • Unaccompanied minors
  • Alcoholic drinks in the vehicle

Know before you go

  • All kayaks that are doubles (for two people). Uneven participants will be combined with another uneven in a double kayak or with a tour guide, depending on the final number for the tour.
  • Maximum Weight per person 230 pounds.
  • This tour runs with a minimum of 10 participants and a maximum of 24.
  • All Participants are Required to Paddle and Manage their Own Kayak. Guides will assist when needed but Will Not Tow guests for the entirety of the tour.
  • No children under 18 can participate without adult supervision
  • There will be three to four guides in the water at all times
  • You will spend 2 full hours in the water
  • Transportation is not provided on this tours, a rental car is recommended. Uber and taxis are not reliable from the tour location, unless secured for round trip transportation.
  • Visibility may change based on weather.
  • This tour is not recommended for people who are afraid of being in the water of fear of dark.
Likely to sell out

From $85 per person

Reserve now & pay later to book your spot and pay nothing today
Reserve now & pay later to book your spot and pay nothing today

Customer reviews

Overall rating

4.7 /5
4.7 out of 5 stars

based on 183 reviews

Review summary

  • Guide
    5/5
  • Transportation
    4.8/5
  • Value for money
    4.7/5

Customer photos

+10
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5
5 out of 5 stars
T
Trevor – United StatesJune 28, 2025 – Verified booking
Guides were great, and the bio bay was very cool. The kayaking was kind of chaotic, especially when we were trying to pass by another tour group going the opposite direction in the narrow channel. Still fun, but might be kind of scary for inexperienced kayakers.
5
5 out of 5 stars
M
Megan – United StatesMay 20, 2025 – Verified booking
Guides were very knowledgeable and fun. Felt safe due to the briefing and their experience. Bioluminescence was strong that night! Highly recommend.
5
5 out of 5 stars
E
Elizabeth – United StatesMarch 21, 2025 – Verified booking
Excellent, patient guides. Incredible stars and the sparkles in the water was more than I could imagine!

Product ID: 22181

Activity provider:
Puerto Rico Bio Bay Tours LLC
  • Puerto Rico
  • Eastern Region, Puerto Rico
  • Things to do in Fajardo
  • Tours in Fajardo
  • Bioluminescent Bay, Fajardo

Top Attractions in Fajardo

  • 1Icacos Island
  • 2Bioluminescent Bay, Fajardo
  • 3Puerto Del Rey Marina
  • 4Cabezas De San Juan
  • 5Fajardo Lighthouse
  • 6Laguna Grande, Fajardo
  • 7Puerto del Rey Marina
  • 8La Cordillera Reef Nature Reserve

Experiences in Fajardo

  • 1Fajardo Cruises & boat tours
  • 2Fajardo Bioluminescence tours
  • 3Fajardo Lights tours
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