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Two people kayaking at night with red light illuminating the water.

Explore

The Mangrove Channel

Paddle a 1.5-mile water trail enclosed by ancient red mangrove trees to reach the open lagoon.

Photo: tour listing on Viator

The route to the lagoon runs through a narrow canal within the Las Cabezas de San Juan Nature Reserve. Visitors paddle two-person kayaks in near-total darkness along the winding waterway.

Because the path is highly restricted, guides group the boats and set a steady pace.

People walking across a wooden bridge in a dense tropical forest.
Photo: tour listing on Viator
01

Canal Entrance

10 minsNature reserve boundary

This transition zone moves from the open ocean bay into the protected nature reserve. Take in the last bits of daylight and coastline views before entering the shaded channel. Guides use this area to organize the kayak formation.

People getting into kayaks on the beach near the water.
Photo: tour listing on Viator
02

Red Mangrove Tunnel

30 mins1.5 miles each way

A narrow, 1.5-mile trail runs under a thick canopy of red mangrove trees. Keep your paddle parallel to the kayak when you are not actively paddling. This simple positioning prevents your blade from snagging the roots in the dark.

Tour photo
Photo: tour listing on Viator
03

Iguana & Wildlife Canopy

10 minsLook up at the canopy

Green iguanas and coastal birds rest in the upper branches of the mangroves during the night. Your guide will highlight the sleeping wildlife using a laser pointer. Stay quiet and listen closely to spot the animals overhead.

Paddle the Mangroves

Group of kayakers huddled together on the water at night.
Bio Bay Kayak Tour in Fajardo2 h 4.6 (1,649)from $69
marine biologist kayakfrom $69 on Viator
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