An RNLI crew from Falmouth rescued two fishermen on Friday night after their yacht lost power in the Helford River.
The lifeboat was near Pendennis Point responding to a previous incident when at 10.43 Falmouth Coastguard asked for it to investigate a report of a yacht in difficulties off Durgan Beach.
The unnamed 24 yacht with two people on board was found secured to a mooring close to the beach having suffered engine failure, and having no sails.
Local anglers on the shore had seen the yacht, which had limited safety equipment and no means of raising the alarm, drifting towards the beach before the crew had grabbed hold of an unoccupied mooring.
The boat was taken in tow and returned to its berth in the Port Navas Creek.