London - Monaco
In 1998, Alan Priddy and a crew travelled in the RIB Spirit of Portsmouth from London to Monaco. The 2,100-mile route went down the Thames Estuary, along the length of the Channel to Guernsey, across the Bay of Biscay to Spain, into the Mediterranean and past Gibraltar to Monaco.
The team was backed up by two road crews. They completed the voyage in 99 hours 19 minutes 15seconds.
The Royal Yachting Association did not ratify the record as they had not been invited to start the race.