Swim into a hidden nocturnal reefscape off San Juan guided by LED and UV lights. This 90-minute night snorkel reveals bioluminescent highlights and night-active species in shallow reef zones with expert local guides.
More ways to explore the area's outdoor wonders
The surface darkens and the shoreline becomes a ribbon of distant lights; below, the reef wakes. On a San Juan LED night snorkel you slip quietly into warm Caribbean water and follow guides who paint the reef with UV and LED beams, turning ordinary corals, sponges and small fish into a palette that seems to glow from within.
Difficulty
easy
Duration
1.5 hours
Fitness Level
Suitable for most swimmers and anyone comfortable in shallow, calm ocean water; basic snorkeling fitness recommended.
Wildlife
History
San Juan’s reefs grew alongside centuries of maritime trade; nearby forts and stone breakwaters shaped local currents and coastal habitats.
Conservation
Follow dive-operator guidance: avoid touching coral, use reef-safe sunscreen, and support local reef protection initiatives to minimize impact.
Reserve your spot on the San Juan LED Night Snorkel today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Book by moon phase
New-moon nights increase contrast for fluorescence; check lunar calendars when booking for the best glow.
Use reef-safe sunscreen
Apply biodegradable, reef-safe sunscreen before arrival—no lotions in the water to protect corals.
Practice mask clearing
Polish your basic mask-clearing and breathing skills ahead of time to stay relaxed in night conditions.
Arrive early for briefing
Plan to be on-site 30–45 minutes before departure for equipment fitting and safety instructions.
Snorkel mask (well-fitted)
A tight, well-fitting mask keeps water out and reduces fogging during night snorkeling.
Fins (open-heel or full-foot)
Fins improve propulsion and control so you can hover without touching reef.
Reef-safe sunscreen
Protects both your skin and the coral—apply well before entering the water.
summer
Light neoprene rash guard or thin wetsuit
Adds warmth and abrasion protection on breezier evenings or chillier winter nights.
winter