There are only 100 spaces left on the event, which takes place on Sunday July 20.

The 128 foot abseil sees volunteers tackle the descent from the top of Ocean House in London Road, St Leonards and offers panoramic coastal views for those brave enough to take up the challenge.

St Michael's spokesman, Perdita Chamberlain, said: "2008 is a very significant year for St Michael's as we're celebrating our 21st anniversary.

"If you've ever thought about taking part in our abseil, this is the year to do it.

" We've launched The Key to the Door Campaign to support the launch of a capital appeal for a £4.3m project to improve patient care and secure our buildings for the future - funds required are in addition to the £3m we have to raise each year just to keep going, so every penny really does count."

Enthusiasm is more important than experience and age is no barrier as last year two abseilers were octogenarians, though children under 18 will require parental permission.

The abseil is led and managed by one of the UK's leading providers in outdoor pursuits, so participants will be in extremely safe hands.

It costs £10 to register with a commitment to raise a minimum of £100 sponsorship. The Hospice will help challengers to reach their target by setting up an online Just Giving sponsorship page to help with fundraising.

To secure your place call Perdita Chamberlain 01424 719252 or email: pchamberlain@stmichaelshospice.com.