If you're planning to visit on a wet day: Don't. I...

If you're planning to visit on a wet day: Don't. It's a miserable overcrowded experience. You won't be able to walk around the biomes just shuffle through with everyone else - rather like a London underground platform in rush-hour - unable to see any of the information boards. And definitely don't take your dog: Despite claims of dogs being welcome is most definitely not dog-friendly - a two page leaflet, issued on arrival, tells you what your canine friend cannot do!