Do you mind if I dispute a couple of dates? Flamingo Park opened on 28th June 1961, and Scarborough Zoo and Marineland on 15th June 1969.
Thanks again. I will amend the Scarborough date, The date for Flamingo Park relates to the time dolphins were displayed not the opening of the park. Thanks also for confirming the date for Blackpool. The animal in the photograph at Blackpool (on my web site) I actually worked with at Margate dolphinarium.