I took my daughter here last year before we moved to the mainland and we quite enjoyed ourselves. The tour went for about 40 mins which i thought was just the right amount of time as any longer and my daughter would have started getting bored with all the information being given. My daughter loved being able to touch the echidnas when we went through their room. It was pretty awesome that they were walking around you as you were walking through the room. I thought the platypuses were so cute but my loved the echidnas better. Seeing them being fed was pretty cool. The tour guide was very informative and really knew what she was talking about. The staff were really nice and very good with kids. I thought the $20 for adults and $9 for kids was quite reasonable price to pay.