Family and friends of three fishermen who died when their vessel sank off the Dorset coast will set sail to the site of the wreck later.
The Purbeck Isle went missing in May but the search was called off after it was found on the seabed, 10 miles south of Portland Bill.
The body of skipper David McFarlane, 35, was recovered.
The bodies of two other crew Jack Craig, 21, and Robert Prowse, 20, are still missing.
The boats are expected to sail from Weymouth habour this evening [19:00] and flowers will be laid in the water in their memory.
Survey ship Odyssey Explorer found the wreck of The Purbeck Isle with its life-raft still on board at a depth of 50m.
The flotilla is part of a day-long event which includes music and a charity auction on the harbourside to raise funds for the Purbeck Isle Memorial Fund.
Find out more on the Purbeck Isle Appeal Facebook page.