Always thought the collection at Fota to be standard at best, with all the space, a masterplan, the arrival of the howler monkeys, hopefully we will see a few choice species starting to arrive.
Erm........... Fota is in Ireland not in the UK! if you want to see wallabies in the UK head to staffordshire there is a healthy population in that area
Quite a few zoos have free ranging wallabies, a prime example in the UK is the fantastic, ZSL's Whipsnade Wild Animal Park!