Different, so it's like comparing apples and oranges. Te Puia is more commercial, and the geyser when it goes off is quite satisfying. They also have the cultural displays, the kiwi house, and a very good shop with locally made arts & craft items. Waimangu was a more natural setting, with less crowds, and the boat trip on the lake (extra) was a different perspective on how the volcanoes create the landscape. Their mud pools were quite active while we were there. If you are short of time and won't have an opportunity to see Kiwi or take in a cultural experience elsewhere, Te Puia will give you a more time effective experience. We were glad we did both.

I love Waimangu. Atmospheric with wonderful history and bird life. Really calming and scenic. Great cafe at the top as well and the bus is very handy. Make sure you get the boat tour included in the ticket price. The commentary and images are amazing of what has happened in the area.

Definitely, without question, do Waimangu over Wai-O-Tapu!! There is no comparison, I think. The kids are old enough to keep up with the walking and will find it much more interesting. Plus, you can go at your own pace and there a plenty of places to stop and rest. I think the kids (and you) won't be disappointed if you choose Waimangu over Wai-O-Tapu. Enjoy!

Yes you can go on your own as I did- but it would be more enjoyable if you had a friend with you

I would not suggest this particular place for seeing the volcanic colours etc...perhaps the more gentle walk at Waka along the far end of Fenton Street on the pre boarded walkways would be more suitable, it is more commercialised but just as great to visit.