This is the second time we have done the Ali'i tour at Tropical Farms. Our young boys wanted to do it again, and seeing as it was the highlight of the trip for my wife and I last year, so did we. The tour guide is extremely likeable and funny. He also provides a bunch of interesting information on local plants and fruits, along with local Hawaiian culture. Throw in a shout out to all the movies that have been shot on the property along with a boat ride on an 800 year old man made reservoir full of huge fish and you get your money's worth. We have done the Polynesian Cultural Centre along with all the other touristy type attractions on Oahu. This is one of the most fun and realistically its a bargain compared to the other choices. $20 per adult and $10 per kid. You won't regret this tour.