Chris I hope you take this the right way as I feel what this comes down to is a "mid set", sure the collections in the UK CAN build a first class exhibit to house these animals BUT they never have, the mind set to do things "on the cheap" is a major block in building something like they have at San Diego, the doing things on the cheap has only given reasons for people who do not want captive animals in zoos like PETA and the like, WHY feed ammo to these guys buy having any animals in sub-standard exhibits and conditions. Give them the best and you will find much less can be said
I agree with much that you have said but please bear in mind that we are talking of faculties constructed 35 or more years ago. Yes some were appalling; I have first hand experience of a number of them but others like Flamingo Park, Brighton Aquarium and Morecombe’s Marineland were not bad for their day and purpose built.
Brighton costs a quarter of a million pounds to build which was no small amount of money in 1972. Morecombe which was the idea of George Cansdale (formerly of London Zoo)
Obituary: George Cansdale - People, News - The Independent
and Robert Jackson (owner of The Welsh Mountain Zoo) who consulted the *Miami Seaquarium regards design. The Seaquarium actually supplied Marineland with it's first dolphins and trained the staff who looked after them.
One would hope that all zoos and aquariums would review and rebuild their animal facilities, as we understand more as the requirements of the species concerned. For example, London Zoo no longer has elephants at London but now has the herd at Whipsnade because the London elephant house was consider out of date although it was considered by some state-of-the-art when it was constructed in 1965.
*If anyone is interested there are two excellent books on the design and operation of the Seaquarium:
Craig Phillips. The Captive Sea (1964)
William B Gray. Porpoises Tales. (1964)