Watch out when medusas are about in the USA

Each month, just over a week after the full moon, the risk of being stung by box jellyfish off Oahu’s south-facing beaches rises. A local news source reports that the popular snorkelling site Hanauma Bay was closed after 30 reported stings on Jan 19 and further review was planned for the following three days of peak conditions. The Waikiki Aquarium publishes an online calendar estimating days of high probability for the presence of jellyfish while also warning that the creatures ‘may be present on any day of the year. Always obey warning signs posted on beaches.’  Read more.

Affected Regions

North America

Affected Countries