A six-man team from Surrey is hoping to break the world record for rowing the length of the River Thames.
The team have dedicated their attempt to Norris McWhirter
The crew, from the Dittons Skiff and Punting Club, will begin the challenge to regain the title on Friday.
They hope to row nearly 186 miles from Lechlade, Gloucestershire, to Southend Pier in Essex in less than 39 hours.
Their attempt, which has been dedicated to the late Norris McWhirter, comes less than a week after a team from Bedford failed the challenge.
'Ready to go'
The Ditton team, which held the record from 1988 until 1993, will row continuously in a Thames skiff, a traditional rowing boat.
Dittons Skiff and Punting Club president and crew member Simon Leifer said: "All our training has gone to plan and mentally the crew is ready to go."
Included in the crew is Mike Hart, a former silver Olympic medallist.
They will be raising money for two Surrey charities, Cherry Trees and the Crescent Resource Centre, Kingston, as well as supporting the Mayor of Elmbridge's charities, Bliss and Alzheimer's Disease.
The three-man team from Bedford were forced to abandon their efforts on Sunday because of bad weather.