Experience Koh Phangan’s reefs after dark with ultraviolet lamps that make corals and anemones glow. This guided shore dive is for certified Open Water Divers and highlights shallow fluorescent displays close to Haad Yao.
More ways to explore the area's outdoor wonders
The sea at night becomes a different world: black water, slow bubbles, and sudden pinpricks of neon where coral and anemones flare under ultraviolet light. On Koh Phangan’s west shore you slip off a quiet sandbar at Haad Yao Deuk and watch the reef wake up in colors that daylight never shows—greens, hot blues and electric oranges that seem to glow from within.
Difficulty
moderate
Duration
2 hours
Fitness Level
Comfortable with surface swims and basic scuba skills; minimal sprinting or heavy exertion required
Wildlife
History
Koh Phangan’s communities historically relied on small-scale fishing; in recent decades eco-focused dive operators have grown to celebrate and protect reef life.
Conservation
Corals here are sensitive—avoid touching, use reef‑safe products, follow guide routes, and minimize light disturbance to reduce stress on nocturnal species.
Reserve your spot on the Fluorescent diving with ultraviolet dive lights today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring your certification card
An Open Water Diver certificate is required—operators will check credentials before the dive.
Use reef‑safe sunscreen
Apply sunscreen that won’t damage corals and avoid lotions before entering the water to protect fluorescent organisms.
Night-appropriate buoyancy
Practice neutral buoyancy in daylight dives first—the guides stay in shallow water and you should be stable to avoid contacting the reef.
Charge your dive light and computer
Carry a fully charged primary or backup white light even though UV lamps are provided; your dive computer should be readable in low light.
Dive certification card & logbook
Required proof of training and useful for guides to review experience level.
Low-volume mask with yellow filter
Yellow filters enhance UV contrast and improve what you can see and photograph.
Reef‑safe sunscreen
Protects skin and prevents harmful chemicals from entering the reef environment.
summer
Dive computer or timing device
Tracks bottom time and decompression limits during night dives in low-visibility conditions.