Thanks to the people that suggested the south lakes zoo, went today and the kids totally loved it, buy some food on the way in and go feed the kangaroos and if you have the nerve the emu's.
Get to the lion enclosure for around 1615 when they are locked inside (whilst the keeper gets their food ready), you can get within a couple of feet of these awesome animals, close up their roar is truly spine tingling.
Loads of monkeys emu's and kangaroos just freely wandering around mingling in with the visitors, it really is a good day out.
Its about a 2 hour drive from manchester and I'd recommend going on a fine day, its about a 15-20 minute drive from bowness/windermere if you fancy nipping there after for your tea by the lake.