The charity Manx Dolphin and Whale Watch are urging sea users to respect resident dolphins Moonlight and Starlight.
The famous mother-daughter pair are unlike other dolphins and are very confident, often swimming close to the Manx coastline in shallow waters.
The organisation says it's issued guidelines about behaviour near Moonlight and Starlight if you spot them at sea.
It says you shouldn't crowd them, use paddles near them or touch them - you can find out more here.
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