The Dart inshore lifeboat was returning from an exercise when a member of the public onshore pointed to a person attempting to swim across the river. He stated that he was swimming back to his boat on the deep water pontoons. He was taken to the pontoons and then dived in again to swim to the next pontoon. He was then returned to the Dartmouth shore and the Water Taxi was called for him. The Harbour Authority gave him advice regarding swimming in a busy fairway.