Cleethorpes Zoo & Marineland was founded by Pentland Hick and was operated as a satellite zoo to Flamingo Park both of which was later owned by Scotia Leisure. The display of dolphins at this park was not continuous with some years presentations being from sea lions only. The last dolphins to be displayed here was in the summer of 1974 with animals supplied by Aquatic Mammal Enterprises. The zoo closed in 1977 and was later redeveloped into Pleasure Island Theme Park.

The dolphin trainer in the coloured pictures is Keith Reaney.