Some of the most striking Maldives photos online show waves glowing electric blue at night — a real phenomenon known as the "Sea of Stars," caused by bioluminescent phytoplankton in the water rather than any kind of digital effect.
What's actually happening
Certain phytoplankton species emit light when disturbed — by a breaking wave, a footstep in the shallows, or a hand moving through the water — a natural defence mechanism that happens to produce a strikingly beautiful glow along the waterline after dark.
Vaadhoo Island
The phenomenon is most famously associated with Vaadhoo Island in Raa Atoll (see our Raa Atoll guide), though bioluminescent plankton isn't strictly confined to one island — conditions simply need to align, and Vaadhoo is the name that's become attached to the phenomenon online.
Managing expectations
This is a genuinely unpredictable natural phenomenon, not a scheduled show — plankton bloom intensity varies night to night and isn't guaranteed on any given visit. A dark, moonless night away from resort or town lighting gives the best chance of seeing it clearly; see our stargazing guide for similar dark-sky conditions that also favour a good bioluminescence display. Heavily edited or long-exposure photography online often makes the effect look more intense than what you'll see with the naked eye — beautiful in person, but usually more subtle than viral photos suggest.