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Here's what the Cassiopea xamachana jellyfish looks like. Photo taken at aquarium in Loro Parque
Here's what the Cassiopea xamachana jellyfish looks like. Photo taken at aquarium in Loro Parque

How upside-down jellyfish can make the water sting

In some tropical waters like the Florida Keys mangrove forests, for snorkellers to stay safe, it’s not enough to not touch anything. It may not be a good idea to enter the water in the first place.

That’s because sometimes it seems that the water itself can sting, causing rashes on a snorkeller's skin.

The real culprit is not some mutant strain of water molecules. Rather, it is a species of upside-down jellyfish that lives on the ocean floor. Called Cassiopea xamachana, this jellyfish can also be found in places like the Caribbean Sea and the Gulf of Mexico.

Here's what the Cassiopea xamachana jellyfish looks like. Photo taken at aquarium in Loro Parque

How upside-down jellyfish can make the water sting

In some tropical waters like the Florida Keys mangrove forests, for snorkellers to stay safe, it’s not enough to not touch anything. It may not be a good idea to enter the water in the first place.

That’s because sometimes it seems that the water itself can sting, causing rashes on a snorkeller's skin.

The real culprit is not some mutant strain of water molecules. Rather, it is a species of upside-down jellyfish that lives on the ocean floor. Called Cassiopea xamachana, this jellyfish can also be found in places like the Caribbean Sea and the Gulf of Mexico.

Here's what the Cassiopea xamachana jellyfish looks like. Photo taken at aquarium in Loro Parque
Here's what the Cassiopea xamachana jellyfish looks like. Photo taken at aquarium in Loro Parque

How upside-down jellyfish can make the water sting

In some tropical waters like the Florida Keys mangrove forests, for snorkellers to stay safe, it’s not enough to not touch anything. It may not be a good idea to enter the water in the first place.

That’s because sometimes it seems that the water itself can sting, causing rashes on a snorkeller's skin.

The real culprit is not some mutant strain of water molecules. Rather, it is a species of upside-down jellyfish that lives on the ocean floor. Called Cassiopea xamachana, this jellyfish can also be found in places like the Caribbean Sea and the Gulf of Mexico.

When can we travel again?

Light at the end of the tunnel?

Massive decline

The scale of the coronavirus pandemic’s impact is outlined in a report by the World Tourism Organization (UNWTO), which predicts a decline in international travel of between 58% and 80% in 2020. The prediction of a 58% decline is based on the gradual reopening of international borders and easing of travel restrictions in early July; the 80% figure is based on early December.

Guardian in Lacy Palace, by Chong Wan Yong of Malaysia, First Place, Compact Camera category, Lens Beyond Ocean 2019

Call for entries: Lens Beyond Ocean photo competition

Indeed, this year’s prizes worth US$25,000 do not disappoint, comprising dive travel packages to some of the best locations in Asia as well as top-of-the-line dive equipment and underwater camera gear. Judges of this year’s competition include renowned underwater photographers Tobias Friedrich of Germany, Jason Isley of the United Kingdom and Nurul Yazid of Malaysia.

Entry deadline

The deadline to enter is 15 May 2020.

Malaysia International Dive Expo

Malaysia International Dive Expo 2020 is open for registration

Over the past 15 years, the show has welcomed around 180,000 visitors, with an average of 10,000 visitors each year, of which 90% were divers. Attending industry professionals last year included dive operators, manufacturers, distributors, entrepreneurs and tourism boards, many of whom made use of a new B2B networking platform MIDE created just for them.