Cornish icon and Skinners Brewery mascot, Betty Stogs, will be abseiling from the tower of the National Maritime Museum to help raise money for charity.
The third annual event, which takes place on Sunday, June 3 and is organised by BF Adventure, forms part of the 2012 Truro & Penwith College Fal River Festival.
Money raised during the day, which totaled £2k in 2011, goes to help BF Adventure with its work to support disadvantaged and disabled children in Cornwall.
Over 120 people have taken part in the last two years and organisers are hoping more intrepid souls will want to abseil down the 95ft tower, which overlooks Falmouth harbour.
BF Adventure advises anyone wanting to take part to book in advance, however, there will be first come first served slots available on the day.
Registration costs £12 and anyone 11 years old or over can take part. The event runs from 10am to 4pm.
To register and for more information about BF Adventure call 01326 340912 or email email@example.com.