Scuba divers will undertake an underwater five-mile relay challenge at Coniston Water in memory of one of their club members.
It will be the second sponsored charity challenge which has been organised by the Ribble Valley branch of the British Sub-Aqua Club (BSAC) to remember Duncan Priestley, of Accrington, who passed away, aged just 59, in August 2013 from cancer.
Buddy pairs of scuba divers will use a relay system to cover the five-and-a-half mile lake on Sunday from 6am to 4pm and their aim is to raise money for lifeboat charity – RNLI.
Learn more about the work of the RNLI at: http://www.rnli.org