Lifeboat crew trainees from Penarth took part in a successful assessment day on the water.
The RNLI crew was also called out to help a fishing boat dragging its anchor towards Lavernock Point on Saturday.
The assessment day saw crew members being tested on crucial skills such as navigation, anchoring and veering.
One volunteer, Liv Quinn, successfully passed out from trainee to a fully-fledged crew member on the Atlantic 85 lifeboat.
Volunteer training includes hundreds of hours of practical and theory-based training, covering topics such as launch and recovery, using search and rescue radio equipment, chart work and local knowledge.
The crew were called out by Milford Haven Coastguard at just after 1pm to investigate a fishing vessel with potential engine failure, which appeared to be drifting.
The D-class lifeboat at Penarth was sent out and found the boat and its crew were well, after which, it lifted its anchor and returned to Cardiff Bay.
Jason Dunlop, lifeboat operations manager at the RNLI's Penarth station, said: ''We are delighted to congratulate Liv on her passout and all the volunteers who completed assessments.''
''It’s great to see the hard work and dedication from everyone in the team, which all goes into the provision of our lifesaving service.''