At 10.55am Holyhead Coastguard requested that Porthdinllaen RNLI lifeboat should launch to assist a broken down pleasure craft.
The 20ft Bayliner type craft, called the Blue Moon, had two people on board and had suffered mechanical failure approximately 10 miles North of Porthdinllaen Point.
The Blue Moon, which had set off earlier in the morning from Portdinorwig for a leisurely fishing trip, had suffered a drive coupling failure on their inboard engine which was not repairable at sea. Weather conditions were sunny with calm seas and only a slight breeze.
Upon arrival, the volunteer lifeboat crew from Porthdinllaen passed over a tow line to the Blue Moon and upon arrival at Porthdinllaen Bay, the boat was placed on a safe mooring.
The lifeboat then returned to the boathouse and was refuelled and ready for service at 12.45pm.
Ken Fitzpatrick, Lifeboat Operations Manager at Porthdinllaen RNLI, said: 'The Blue Moon suffered an unavoidable breakdown due to the failure of the engine drive coupling and the only option was to request a tow back to Porthdinllaen.'