My friend and I, two women, one mid 60s and one early 70s, will be arriving on a cruise in late October. We will be in port from 8 am-8 pm. and from what I've read, I think we should go to Waiotapu. I'm wondering if we should also do Waimangu or spend the rest of the day in town. What do you think and what would you suggest we see if we do only Waiotapu?