The areas most commonly affected are Waikiki Beach and Hanauma Bay, but there has also been large influxes this year along the Wai'anae Coast.

Before entering the water, check with lifeguards in the area for updated conditions before going in the water.

There is the possibility of getting stung, so be advised and stay out of the water if you know you are allergic and/or don't want to be stung.

If you are stung by a box jellyfish, flush the sting area with copious amounts of white vinegar. Anyone experiencing breathing difficulty, muscle cramps/spasms, and/or persistent pain are advised to seek immediate medical attention. Lifeguard stations are supplied and equipped to treat this type of marine sting.