I use a motability scooter and find that I can access most areas of the zoo. The zoo is built on quite a steep hillside so there are some areas which are too difficult and people using a manual wheelchair would need a very strong pusher, although there is a clearly marked wheelchair route. I have a platinum card which is really good value and means that I can pop into the zoo for a couple of hours at a time which is much less tiring for me. Huge improvements have been made over the last few years and the animal enclosures are now much better. The staff are usually very helpful and the animal feed talks are always informative. I would highly recommend this for anyone but particularly anyone who wants to keep children entertained and interested for the day.