Daredevils are wanted to abseil down the Spinnaker Tower.
Autism Hampshire is looking for people to brave the descent on Saturday, April 30.
Participants will help raise thousands of pounds for people affected by autism.
It costs £60 to register, and a minimum of £260 in sponsorship must be raised for the abseil.
To register your interest call 01489 880 881 ext. 204 or email firstname.lastname@example.org or visit autismhampshire.org.uk.