In short
- Standard kayak tours cost $65 to $75 per adult.
- Independent entry is strictly prohibited.
- Tours with San Juan transportation cost $110 to $135.
In this article
Laguna Grande is a protected nature reserve. Because of this, you must book a guided excursion to see the bioluminescence. The Fajardo bio bay tour cost depends largely on whether you need transportation from San Juan.
Is there an entrance fee for Laguna Grande?
There is no general admission ticket for the bay. You must pay a licensed tour operator to enter the water.
Independent access to the bioluminescent bay is prohibited. The Department of Natural and Environmental Resources (DRNA) regulates the reserve. To see the glowing dinoflagellates, you will book a kayak tour instead of buying a standard ticket.
How much is a standard Fajardo bio bay tour?
A standard guided kayaking tour starts at $65 to $75 per person.
These base prices apply if you drive yourself to the Las Croabas launch point in Fajardo. Tour rates vary slightly by platform and change over time. This fee covers your guided paddle through the 1.5-mile mangrove channel to the open lagoon.

How much does a tour with San Juan transport cost?
Packages that include hotel shuttle service cost between $110 and $135 per person.
Driving from San Juan to Fajardo takes 45 to 60 minutes. If you do not have a rental car, booking a tour with included transportation is the most reliable option. Finding an Uber in Fajardo late at night for the return trip is very difficult.

What does the tour price include?
Your fee covers the guide, a two-person kayak, paddles, and a life jacket.
- Gear: A sit-on-top tandem kayak and paddles.
- Safety: A US Coast Guard-approved life jacket that you must wear at all times.
- Guidance: A DRNA-licensed guide who navigates the dark water trail.
Bring cash for guide gratuities, as tips are rarely included in the booking price.

Comparing Fajardo Bio Bay Tour Costs
Choose your tour type based on whether you have a rental car.
Standard tours are the most common choice. Transportation packages cost more but save you from navigating dark, unfamiliar roads.
Questions travellers ask
Can I rent a kayak and go by myself?
No. Independent kayaking is prohibited in Laguna Grande. You must be accompanied by a DRNA-licensed tour guide.
Does the tour price change depending on the time of year?
Base prices remain relatively stable year-round. However, demand spikes during the new moon phase when the sky is darkest.
Do kids pay the same price as adults?
Yes, most operators charge the same rate for children. The minimum age to participate is generally 6 years old.






