The venomous but beautiful Portuguese man o’ war or bluebottle jellyfish was recently sighted at Girgaon Chowpatty. Experts working in the field of marine conservation feel that those visiting city beaches need to take precautions in order to avoid getting stung by the jellyfish.

The Mangrove Foundation on Wednesday tweeted, “It is an annual phenomenon for the Portuguese man o’ war/bluebottles to wash up on the shores during this season. To educate people, Mangrove Cell, Mangrove Foundation and Coastal Conservation Foundation are putting up signboards at the Girgaon, Juhu and Versova beaches.”