My sister and I were given a VIP tour voucher as a present. I can't recommend this experience highly enough. We had the park to ourselves as the tour starts at 6pm. We were part of a small group, 8 in total. Our guide was amazing - passionate about the park and the ethos and work that goes on behind the scenes and knowledgeable about the animals. We got close to the animals, saw them in their environment at the end if the day, when they were more active, and learnt so many things, that walking around by ourselves, we would never have known.