I have read many reviews and I'm concerned about our son(10 yrs old) getting car sick on the road to Hana. Is there an alternative where we could do a little hiking (1-4 miles round trip), jump off rocks into a waterfall, see a blowhole, etc. The pictures for the road to Hana and seven pools looks great but seems like an awful long drive. We are staying at the Grand Wailea, not sure what city that's in. Thanks for the help.