The dolphinarium was sited at the Coney Beach Pleasure Park, Porthcawl, South Wales and originally built and owned by Joe Raber's company Marine Mammals International. The last two dolphins to be housed there were in the winter of 1974 undergoing training for the Royalty Folies show in London. The dolphinarium was then used for sea lions shows by Jervale Ltd in the summer of 1975.
A Review of Dolphinaria states:
The pool, in a precast concrete building, was 13.72 x 6.71 x 2.74 m deep. In October 1974 it was said that the dolphins wintered at Flamingo. It is not clear when the change from Battersea to Flamingo animals took place, possibly for the 1973 season.