Very interesting reading, includes many thought provoking perspectives:

http://www.theday.com/article/20110904/ENT15/309049986/-1/ENT

He finally says, "It's very sad. It's like they're in a zoo. There are no pools for them to swim in, no stimulation or exercise other than the basic necessities. They're wasting away. It's horrible and it's absolutely a regressive situation.

Is the Safari Park AZA accredited? I thought AZA guidelines required a pool of a certain size for any tiger enclosure.

It appears not to be:

http://www.aza.org/findzooaquarium/

That's a shame. These animals are far too intelligent to simply be placed in a fenced field: They're natural swimmers and brilliantly smart. I've seen plenty of examples of tigers in subpar zoo enclosures exhibiting far more stereotypical behavior than those in reputable circuses. Hell, every circus I've been to in the last several years has provided the cats a large tub for swimming in their backlot exercise enclosures.