Recent sightings include about eight dolphins (likely bottlenose) off Orlock Point near Groomsport on the North Down coast, heading north-west, and of harbour porpoises at Black Head opposite on the Co. Antrim coast.
You can watch the dolphins in the video below
A dozen porpoises were sighted in calm conditions, feeding, travelling and resting and heading northeast.
And had boat owners been able to go down the pontoons at Bangor Marina last Saturday they might have had a treat. The duty berthing master watched a mother otter and two pups playing on a pontoon.