Bio Bay from San Juan: the closest bay and how to get there.
The closest bio bay to San Juan is Laguna Grande in Fajardo, about 33 to 40 miles east of the city: about an hour, 50 to 90 minutes depending on traffic and where in San Juan you start. Kayak tours launch from Las Croabas in the evening, timed to sunset, and you can drive yourself or book a tour with hotel pickup. Mosquito Bay on Vieques and La Parguera on the southwest coast are much farther.
Which bio bay is closest to San Juan?
Laguna Grande in Fajardo is the closest bio bay to San Juan, about an hour, 50 to 90 minutes depending on traffic and where in San Juan you start, so it fits an evening out from the city. Mosquito Bay sits on the island of Vieques, a ferry or flight away, and La Parguera is about 110 miles southwest, about 2 to 2.5 hours each way.
| Bay | From San Juan | How you get there | Our tour |
|---|---|---|---|
| Laguna Grande, Fajardo | About 33 to 40 miles, 50 to 90 minutes depending on traffic | Drive, rideshare or hotel pickup | Kayak tour, $85 or $145 with pickup |
| Mosquito Bay, Vieques | About 46 miles to the Ceiba ferry, then about 1 hour by sea | Ferry or a short flight, with a night on Vieques | Clear-kayak tour, $85 |
| La Parguera, Lajas | About 110 miles, about 2 to 2.5 hours each way | Courtesy transportation from San Juan on our tour | Sunset boat tour, from $169 |
Distances by road from OpenStreetMap routing; ferry crossing time from Puerto Rico Ferry. Staying somewhere else? See where the bio bays are in Puerto Rico.
How far is the Fajardo bio bay from San Juan?
The Fajardo bio bay is about 33 miles from the San Juan airport and about 40 miles from Old San Juan, measured to the Las Croabas launch area. The drive takes about an hour, 50 to 90 minutes depending on traffic and where in San Juan you start, and evening traffic sits at the long end.
- Luis Muñoz Marín Airport (SJU): about 33 miles
- Isla Verde: about 34 miles
- Condado: about 37 miles
- Old San Juan: about 40 miles
The route runs east on PR-26, PR-66 and PR-3 to Fajardo, then PR-987 to Las Croabas. Aim to leave about 90 minutes before your check-in time and you will arrive relaxed, with time to park and meet your guide.
Getting to the bio bay without a car
You can see the Fajardo bio bay without a car. Pick the $145 pickup option of our tour, ride and paddle in one price: an air-conditioned van meets you at your hotel in Fajardo, Luquillo, Rio Grande or San Juan, drops you at Kayak Village in time to check in, and drives you home after the paddle.
- Hotel pickup, $145 per person. The ride both ways and the tour in one booking. We confirm your pickup time once you book, on either evening departure.
- Uber or taxi. Rideshares run between San Juan and Las Croabas, and fares change with demand, so check the app for today's price. Tours end after dark, so arrange your ride back before you go.
- Rental car, $85 tour. Drive out and check in with your guide in Las Croabas.
Driving yourself to Las Croabas
If you drive, our Fajardo bio bay tour meets at Kayak Village in Las Croabas, on the Fajardo waterfront. The exact address and parking details come with your booking confirmation, and your booking time is your check-in time, with kayaks launching about 30 minutes later.
- Early tour: check-in 5:00 to 6:00 PM. We recommend it, so you paddle in with some natural light left.
- Late tour: check-in 7:00 to 8:00 PM.
- Times follow sunset through the year, and we text you the exact time on the day of your tour.
Where the bio bay in Fajardo is
The Fajardo bio bay is Laguna Grande, a lagoon inside the Las Cabezas de San Juan Nature Reserve on Puerto Rico's northeast corner. Kayak tours launch from the Las Croabas waterfront and follow a mangrove channel into the lagoon, where the water glows blue-green with every paddle stroke.
Pick a dark night before you book
The bay glows every night of the year, and darker skies show it best. Before you lock in a date, check the moon for your trip. The Fajardo tour runs every night, so you can pick the darkest evening that fits your plans, and when the moon is bright, our guides spread a tarp over the group to shut out the light.
Tonight's skySee the darkest nights on the moon calendarDinner before or after the bio bay tour
Plan dinner around your tour time. With the early tour, eat after: you are back on shore in the evening, ready for a relaxed meal in Fajardo or back in San Juan. With the late tour, have dinner first and arrive by your check-in time. Snacks and cold refreshments are waiting on shore after the paddle, so save the cocktails for dinner: the tour itself is alcohol-free.
El Yunque and the bio bay in one day
El Yunque National Forest is in Puerto Rico's northeast region, according to the US Forest Service, on the same side of the island as Fajardo. A rainforest morning and the early bio bay tour in Las Croabas pair well in one day. Our guide to El Yunque and the bio bay in one day has the full plan.
Bio bay on a cruise stop in San Juan
Cruise guests can see the Fajardo bio bay when the ship stays in San Juan into the night, or on a hotel night before or after the cruise. Allow about 2 hours for the tour plus about an hour each way to Las Croabas (50 to 90 minutes depending on traffic and where in San Juan you start), and compare that with your all-aboard time before you book.
A pre-cruise or post-cruise night in a San Juan hotel is the easiest fit, because hotel pickup covers the whole evening. On an overnight port call, message us your ship times and we will tell you what fits.
Vieques or La Parguera from San Juan
Mosquito Bay, Vieques, is a wonderful pick when you stay on the island. You reach Vieques by ferry from Ceiba or by a short flight, and there is no same-day ferry back after the tour, so plan at least one night there. How to get to the Vieques bio bay has the ferry and flight details.
La Parguera, Lajas, sits on the southwest coast, about 110 miles from San Juan and about 2 to 2.5 hours each way. Our sunset boat and bio bay tour is a boat trip from start to finish, with no kayaking: courtesy transportation from San Juan, sunset on the boat at Caracoles island, then the glowing lagoon. It runs on select nights each month and has the same free cancellation as the Fajardo tour. The $199 option adds a lunch stop on the Ruta del Lechón, where guests choose and pay for their own meal. Read La Parguera from San Juan for the trip plan.
Still choosing? Which bio bay is best for your trip compares all three.
Bio bay from San Juan questions
What is the closest bio bay to San Juan?
Laguna Grande in Fajardo is the closest bio bay to San Juan, about 33 to 40 miles east. The drive is about an hour, 50 to 90 minutes depending on traffic and where in San Juan you start. Tours launch from Las Croabas in the evening, with hotel pickup available from San Juan for $145 per person.
How far is the bioluminescent bay from San Juan?
The Fajardo bioluminescent bay is about 33 miles from the San Juan airport, 37 miles from Condado and 40 miles from Old San Juan. The drive takes about an hour, 50 to 90 minutes depending on traffic and where in San Juan you start. Mosquito Bay needs a ferry or flight, and La Parguera is about 2 to 2.5 hours each way.
Can I do the bio bay from San Juan without a car?
Yes. Our Fajardo bio bay tour with hotel pickup is $145 per person, tour included. A driver meets you at your hotel in Fajardo, Luquillo, Rio Grande or San Juan, gets you to Las Croabas in time to check in, and drives you home afterward. We confirm your pickup time once you book.
Can I take an Uber to the Fajardo bio bay?
Yes, you can ride to Las Croabas with Uber. Fares between San Juan and Las Croabas change with demand, so check the Uber app for the current price before you go. Tours end after dark, so arrange your ride back before you go, or book the tour with round-trip hotel pickup.
How do I get back to San Juan after a night bio bay tour?
The simplest way back is the tour with hotel pickup, which drops you back at your hotel in Fajardo, Luquillo, Rio Grande or San Juan after the paddle, $145 per person. If you drive, the trip back is about an hour. If you use a rideshare or taxi, arrange the return ride before you leave.
Is there a bio bay in San Juan?
No, San Juan does not have a bioluminescent bay. The closest is Laguna Grande in Fajardo, about an hour east, and the others are Mosquito Bay on Vieques and La Parguera in Lajas. Many San Juan visitors book the Fajardo tour with hotel pickup, so the whole evening starts and ends at their hotel.
Is the night kayak in Condado Lagoon a bio bay?
No. The night kayak tours in Condado Lagoon are a fun city paddle in clear kayaks lit with LED lights, right in San Juan. The natural glow from plankton is found at Puerto Rico's three bio bays: Laguna Grande in Fajardo, Mosquito Bay on Vieques and La Parguera in Lajas. Laguna Grande is about an hour east.
Where do Fajardo bio bay tours leave from?
Fajardo bio bay tours launch from the Las Croabas waterfront and paddle a mangrove channel into Laguna Grande, which sits inside the Las Cabezas de San Juan Nature Reserve. Our tour meets at Kayak Village in Las Croabas, and the exact address comes with your booking confirmation, along with directions.
What time should I leave San Juan for the bio bay?
Leave San Juan about 90 minutes before your check-in time. Check-in for the early Fajardo tour is between 5:00 and 6:00 PM and for the late tour between 7:00 and 8:00 PM, following sunset. Your booking time is your check-in time, kayaks launch about 30 minutes later, and we text you the exact time that day.
Can I do the Vieques bio bay from San Juan in one day?
Plan at least one night on Vieques for the Mosquito Bay tour, because there is no same-day ferry back after the tour. If you want a bio bay on an evening trip from San Juan, Laguna Grande in Fajardo fits, with tours every night and hotel pickup available for $145 per person.
Which bio bay can I reach from San Juan without a ferry?
Laguna Grande in Fajardo and La Parguera in Lajas are both on the main island, so no ferry is needed. Laguna Grande is about an hour east of San Juan and runs every night. La Parguera is about 2 to 2.5 hours each way, and our sunset boat tour there includes courtesy transportation from San Juan.
Can cruise passengers do the bio bay from San Juan?
Yes, when the ship stays in San Juan into the night or on a hotel night before or after the cruise. Allow about 2 hours for the Fajardo tour plus about an hour each way, 50 to 90 minutes depending on traffic, then check your all-aboard time. Message us your ship times and we will tell you what fits.
Which night is best for a bio bay tour from San Juan?
The darkest night of your trip is best, usually the days around the new moon or any evening when the moon is down during tour hours. Our bio bay moon calendar rates every night. The Fajardo tour runs every night, and when the moon is bright, our guides spread a tarp over the group to shut out the light.
How much is a bio bay tour from San Juan?
The Fajardo bio bay kayak tour costs $85 per person when you drive yourself, or $145 per person when we pick you up at your San Juan hotel. The La Parguera sunset boat and bio bay tour starts at $169 per person with courtesy transportation from San Juan. The bio bay tour cost guide adds up the whole night.
Staying in San Juan? Your glowing night is an hour away.
Tell us your hotel and your date on WhatsApp, and we will set up the Fajardo bio bay tour with pickup. Cancel free until 24 hours ahead.