A 25-foot potting vessel was towed to safety by Tenby Lifeboat after it broke down on Saturday evening.
The 'Cassius J' got into difficulties two miles east of the resort at approximately 5.40 pm.
Tenby's coastguard instant response team also responded to the shout and observed while the all-weather lifeboat, the RFA Sir Galahad, towed the vessel to a mooring off Saundersfoot.