It was wonderful having a native Hawaiian, Kaipo (hopefully, spelling is correct) as our guide. We particularly enjoyed the waterfall (Pua'a Ka'a Falls) near the end of our tour (although Kaipo had more faith in our rock-crossing abilities than was sometimes warranted). He took us to a marvelous fruit stand, to have some delicious coconut ice cream and to have Huli Huli grilled chicken and ribs. We saw his multiple cousins and uncles throughout our trip. He kept us well supplied with water and snacks, so need to bring your own. Recommend bringing water shoes (not flip flops) if you think you might be going into the waterfall pool. For the lava tube, recommend bringing a flashlight (from your phone or otherwise) Kaipo pointed out the rainbow eucalyptus and other various species of vegetation and trees native to Hawaii. The main problem that caused a bit of agita was the apparent lack of communication between the various tour operators (Dynamic Tours) that employ Kaipo--they kept changing the time to meet for our tour (we were 7 people from the same family on a private tour) and didn't seem to have our breakfast and lunch orders until after multiple calls, emails and texts from me. Nonetheless, highly recommend this tour. Lots of beautiful scenery and good food.