In springtime months for a few nights following the full moon, the shallow waters around the Caicos Banks to the southwest of Provo are the scene of a wonderful natural phenomenon: millions of glow worms come together to emit unearthly green flashes of light that is visible from the surface of the water.
It’s all part of a mating ritual, unique in the Caribbean, that begins shortly after sunset.
The glowing lights are produced by a marine worm(Odontosyllis enopla – aka “The Bermudian Fireworm) can only be found in shallow waters around the Turks and Caicos and Bermuda to the north. They’re known as “glow worms” because of the green luminescence that accompanies their spawning cycle.
The female glowworms release eggs that float to the surface seas. The eggs give off pulses of pale green light, which is the signal for the male worms to do their part start glowing as dart among the egg to fertilize them.
The whole spectacle lasts for just fifteen minutes, and the surface of the warm Caribbean comes bursts with glowing lights as a new generation of fireworms is spawned.
The timing of the glow worm mating ritual is tied to the lunar cycle. The females begin releasing their eggs roughly two to three days after the full moon. The spawning activity generally goes on for two or three successive evenings.
Tour times: Glow worm tours are determined by the lunar cycle, and tours occur several days followingthe full moon. (For a lunar calendar, please visit fullmooncalendar.net.) Departure time is approximately 30 minutes before sunset.
To join a glow worm tour, please contact us.