Nasty Nippers, the popular rock pooling session led by the Manx Wildlife Trust, returns on Monday.
The event is open to all members of the Wildlife Watch and Wildlife Rangers.
It will be from 2pm to 3.30pm and will meet at the cafe car park at Niarbyl.
Organisers hope to find the massive sized shrimps and crabs that were spotted last year.
The cost for the session is £1 per child/ranger. Bring wellies and warm clothing.