Sea life to avoid when diving and snorkeling in Cancun

Whether snorkeling or diving Cancun  there is certain sea life that you should avoid. So be cautious during your tours in the water to prevent any accidents.

Enjoy the view but don’t touch!

Generally, the sting of any flora or fauna is not life threatening, but they can all provoke annoying skin reactions and cause unnecessary bother during your dive vacation in Cancun. The golden rule when entering the National Marine Parks is never to touch anything.

Fire Coral is actually more like a jellyfish

Fire coral is not actually real coral but is usually grouped together in the same family. It’s actually closer related to the jellyfish family in that it has a similar sting when contact is made. It is easy to mistake fire coral for seaweed so be aware during your snorkel tours in Cancun. If it is bright yellow-green with a brownish tint, it could be fire coral.

Sea Lice – “Agua mala”

When we hear the word lice, we think of little creepy crawly animals. It is actually very difficult to see these sea lice which make it one of the most common threats to divers and swimmers in the Cancun and Cozumel area. During the summer months the thimble jellyfish lay their larvae and it floats in the water ready to attach to unsuspecting swimmers. The larvae are especially prone to enter the bathing suit where it becomes trapped. If one of your favorite activities in Cancun is swimming from the pristine beaches during the summer months, we recommend you to shower down afterwards.


The lionfish is truly beautiful and with its feather like fins and remarkable coloring it doesn’t look offensive. Unfortunately it is one of the main predators to the Cancun ecosystem due to the fact that it is a foreign species and not native to this area. No one really knows how they arrived to the waters of Cozumel and Cancun but it seems they came from Florida by accident or unauthorized release. If you’re diving from Puerto Morelos, snorkeling in Isla Mujeres or taking part in any local water activity you should be aware of these little spitfires. They have no native predators so they can reproduce and continue taking over the ecosystem. They damage fragile reef, destroy small sea life and have powerful spines which deter predators and can cause a nasty spike to human flesh. Local environment agencies have now come together to try to find out how to control the growth and domination of this beautiful yet powerful fish.

When you visit Cancun, Cozumel and the Riviera Maya enjoy your stay and the water activities.

With Aquaworld we guarantee your safety and make sure you have a fun time.

Get ready for a new adventure at the bottom of the sea, Book your dive now!