The Magic of Night Diving in Cozumel

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Have you ever gazed out at the open ocean at night wondering what happens down there as the sun disappears over the horizon and darkness sets in? If all marine life will be sleeping, or if there’s anything creeping along the reefs?

Here’s what really happens, including a list of our Top 5 Party Guests that make you want to add night diving in Cozumel to your bucket list.

Brief Overview

While the Caribbean Sea is not calming down at night due to the effectively constant trade-winds in the tropics that drive ocean wave trains and cause waves to break throughout day and night, a vibrant party under the sea is just about to begin, as huge basket stars unfurl their arms into the night, parrotfish create their mucus bubble beds, giant lobsters, king crabs and octopus prepare for hunt, and bioluminescence sparkles up the scene.

TOP 5 Party Guests

1. Basket Stars

Night Diving

These sea stars can only be observed in their true glory at night when they unfurl their many branched arms into the darkness to filter food from the water. Some reach nearly a meter in size! Shine your torch on them and watch them curl their huge arms back towards their mouths as they eat the small creatures attracted by your light. 

The perfect party costume, do you agree?

2. Cephalopods – Octopus & Squid

Night Diving

These fascinating creatures are rarely spotted during day dives, but at night you can see them out and about hunting the reef for their next meal. Watch as they move about changing colors and patterns in the blink of an eye! Below is a picture of an octopus spreading its body wide over the reef like a net to encircle its prey.

Did you know that octopuses were that colorful?

3. Crustaceans

Night Diving

Safely tucked away in the back of a crevice during the day, these creatures venture out under the cover of darkness to hunt. A fantastic opportunity to finally get a close-up look at all those king crabs and plenty of lobsters you have only seen as small eyes peering out from the back of a cave.

Up for a dance?

4. Parrotfish

Night Diving

Many fish only half sleep, needing to be alert to the dangers 24/7, but parrot fish have evolved an ingenious warning system so they can get their eyes shut. As night draws in, they find a nook to rest in and start to create a mucus like a bubble encircling their whole bodies. They can rest safely in this for the entire night, but if anything disturbs this veil, they are off like a shot into the dark!

How did this sleepy guy make it into our Top 5?

5. Bioluminescence

Night Diving

For those not familiar with this natural phenomenon, bioluminescence is a chemical process which allows living creatures like plankton, tiny crustaceans, some fish, squid and algae to produce light in their body to either attract prey, confuse predators, or lure potential mates.

As the bioluminescent sea will glow when it’s disturbed by a breaking wave or a splash in the water at night, for most of our divers the best part is covering up the torches and waving our arms about disturbing the bioluminescence into sparkling blue points of light. 

This makes the perfect party glitter!

Already in a party mood? Pack your dive gear!

How to join the underwater party in Cozumel?

  1. Join Pro Dive International’s Cozumel Night Dives as a certified diver.
  2. Boost your skills and make your night dive one of the 5 Adventure Dives of the PADI Advanced Open Water Diver course.
  3. Contact us for guidance.

Learn more about Pro Dive International at: http://www.prodiveinternational.com

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About Author

Renowned for excellent quality in providing world-class diving experiences in the CENOTES, with BULL SHARKS, at WRECKS & FAMOUS WALLS in COZUMEL, SAONA, CATALINA islands and CAYO LEVANTADO, Safaris with WHALE SHARKS, SAILFISH & HUMPBACK WHALES, LIVE-ABOARD adventures with AGGRESSOR FLEET/ SILVER BANK and NAUTILUS EXPLORER/ SOCORRO & GUADALUPE, and visits to world heritage sites, Pro Dive International is the official onsite watersports provider for coveted 4-5* RESORTS along the RIVIERA MAYA & COZUMEL/ MEXICO, and in the DOMINICAN REPUBLIC. Their PADI 5* CDC belongs to the leading training facilities in the Caribbean.

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