Laguna Grande
Laguna Grande
Laguna Grande

Laguna Grande Tours and Tickets

6,137 reviews

During the day, Laguna Grande in Fajardo looks like other bays along the tropical Puerto Rican coastline. But come nightfall the bioluminescent lagoon glows fluorescent, thanks to pyrodinium bahamense, microscopic plankton that thrive in its shallow Caribbean waters and glow when disturbed.

  • Laguna Grande, Fajardo, Puerto Rico, 00738

Tours and Tickets to Experience Laguna Grande

21 results

What are people saying about Laguna Grande

Denisse_M, Nov 2023
Ok tour to be around d the nature
People is very friendly, I chose the Spanish tour but everything explained in English, is a nice experience but the bioluminescence wasn't to bright, there is a lot of people so I fell the tour in a rush, I'll recommend this tour
David_L, Nov 2023
Not really a Bioluminescence experience but Kayaking
The Kayaking experience was wonderful we really enjoy it, but we were not really able to see the bioluminescence. The light from the buildings did not allow us to see a thing, they give us a big tart to cover our heads but it wasn't really enough for us to see much.
Antonia_T, Nov 2023
Kayaking experience
The tour guides Emily and Joe were AMAZING! Give them a RAISE! 😭me and my friends had an awesome time! It was fun as well as beautiful! 10/10 highly recommended!
Jacqueline_S, Nov 2023
Must do in Fajardo!
Truly unforgettable experience seeing this under the stars. Be careful to stay close to the group after free time!
People Also Ask
Q:Can you swim in Laguna Grande?
A:No, unfortunately, you can’t swim in Laguna Grande during your visit or tour. Swimming is prohibited to keep the bay at its healthiest. The only bioluminescent bay in Puerto Rico that you can swim in is La Parguera, which is a 2.5-hour car drive from Laguna Grande.
Q:Why does Laguna Grande glow?
A:The bioluminescence bay of Laguna Grande glows with a blueish coloring because of the dinoflagellates in the water. A dinoflagellate is a microscopic organism that uses glowing as a defense when they notice any movement in the water. These short bursts of blue light have drawn tourists to the bays for years.
Q:Can you go to bio bay without a tour?
A:Yes, you can go to Laguna Grande bio bay without a tour, and it’s legal to go on the water by yourself without a guide. If it's your first time at the bay, you may want to first plan a daytime visit to familiarize yourself with the surroundings.
Q:What time of night does the bioluminescence occur?
A:The best time of night to see the effects of the dinoflagellate’s bioluminescence on Laguna Grande is at least two hours after the sun has set when the sky is dark. One of the best times is also during the new moon phase because there won’t be moonlight reflecting onto the water.
Q:Can you visit Laguna Grande on your own?
A:No, you cannot visit Laguna Grande on your own. Take a kayaking or boat tour with a licensed, permitted tour operator to easily navigate the mangroves and get the best experience of the sparkling, bioluminescent waters after dark. Tours typically include kayaks, gear, and safety equipment.
Q:Is Laguna Grande bioluminescent bay worth it?
A:Yes, Laguna Grande bioluminescent bay is worth a visit. It's one of only a few places where you can easily and conveniently see bioluminescent microorganisms illuminate the waters. Many travelers consider it one of the highlights of a trip to Puerto Rico.
Q:How can I see Laguna Grande?
A:To see Laguna Grande, you need to take a guided tour. Kayaking tours are popular and generally include kayaking gear, safety equipment, and a professional guide who helps you navigate the mangroves that lead to the lagoon.
Q:Can you see the Laguna Grande bioluminescent bay without kayaking?
A:Yes, you can see the Laguna Grande bioluminescent bay without kayaking, but you will need to be on the water as it’s not accessible by land. A few tour operators run tours on small boats out to the lagoon, ideal if you don’t like kayaking.
Q:What month can you see bioluminescence at Laguna Grande?
A:You can see bioluminescence at Laguna Grande all year, but it's best to visit in the dry season, which runs from December–April when there’s less chance of rainfall. If possible, plan your visit to coincide with the new moon, when the sky is darkest and bioluminescence is most brilliant.
Q:Can you go take photos at Laguna Grande?
A:Yes, you can take photos at Laguna Grande, but it's difficult to get still photographic images to match the brilliance of the live bioluminescence. Digital SLR cameras will likely work better than camera phones. Pack a dry bag if you don’t have a waterproof device.