If they ever finish the savannah area they are always talking about you should think about checking out Paignton Zoo, I reckon you'd like Crocodile Swamp. I haven't been for years for obvious reasons but of course they just recently brought in some Komodos.
That penguin habitat is awesome, so much space. It looks like a beach rather than most penguin habitats I've seen where they're just like craggy coves.