Paddle a sheltered mangrove tunnel in Cocoa Beach at sunset and watch comb jellies ignite the water like tiny, underwater fireflies. This guided two-hour tour is best around new moons and offers close, guided encounters with the lagoon’s nocturnal glow.
More ways to explore the area's outdoor wonders
You push off into an inky channel as the sun slides toward the horizon, mangrove roots curling like the fingers of the shore. The lagoon narrows into a tunnel of grey-green prop roots and low branches; the guides’ whispers and paddle strokes are the only sounds until the light collapses and the water begins to sparkle.
Difficulty
easy
Duration
2 hours
Fitness Level
Suitable for most people in reasonable health; minimal paddling fitness required for short distances.
Wildlife
History
The Indian River Lagoon has supported indigenous and maritime communities for centuries; mangrove stands are relatively recent post-glacial coastal stabilizers that shaped local fisheries.
Conservation
Avoid touching or removing bioluminescent organisms, use reef-safe sunscreen, and follow guides’ instructions to minimize disturbance to fragile mangrove roots and marine life.
Reserve your spot on the Thousand Islands Mangrove Tunnel & Bio Comb Jelly Sunset Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Book around the new moon
Bioluminescence is brightest with minimal moonlight—check lunar calendars and reserve on dark-night windows.
Bring insect repellent and a headlamp with red filter
Mosquitoes are common; a red or dim headlamp preserves night vision and doesn’t wash out the bioluminescence.
Wear secure, quick-dry footwear
Launch areas are muddy and roots are slippery—sandals with straps or water shoes are ideal.
Hydrate and dress for changing temps
Evening sea breezes can cool quickly after sunset—bring a light wind layer and water.
Small dry bag
Keeps phone, keys and extra layers dry during launch and paddling.
Red-filter headlamp or dim flashlight
Protects night vision and avoids washing out bioluminescence during observation.
Insect repellent
Mosquitoes are active at dusk in mangrove habitats—repellent improves comfort.
summer
Light waterproof/wind shell
Evening coastal breezes can be cool; a thin shell adds comfort without bulk.
fall