The lifeboat crew were paged at 7.10am after members of the public raised concerns about a swimmer in the water. A D class lifeboat was launched and quickly located the individual underneath Penarth Pier. Penarth RNLI's D class lifeboat launches after reports of a swimmer in difficulty beneath Penarth Pier. (Image: Penarth RNLI)In an update shared after the incident, Penarth RNLI said: "Our crew were paged at 07.10 this morning after members of the public reported a swimmer in difficulty. Penarth RNLI's D class lifeboat launches after reports of a swimmer in difficulty beneath Penarth Pier.