A group of five people were rescued by helicopter after the inflatable boat they were in became stranded on an isolated beach surrounded by rocky cliffs at Robin Hood Bay in Marlborough.

The Nelson Marlborough Rescue Helicopter was called to the scene about 1.30pm on Saturday.

A rescue helicopter spokesperson says the group was unable to launch their craft back into the water due to a large breaking swell. One of the group members climbed the steep cliff to call for help.

The Nelson Marlborough Rescue Helicopter was able to locate and uplift the group, who were uninjured.

They were flown to a waiting ambulance at Robin Hood Bay for a medical check-up.

The Nelson Marlborough Rescue Helicopter was also called to two other medical missions on Saturday, one from the Kenepuru Sounds area to Wairau Hospital and a second mission from Motueka to Nelson Hospital.