Well, it looks like I need to fill my hopes for this trip with something else. Still definitely open to suggestions for places to visit and things to see.
I found some nice condos for rent at Waikoloa, so we may make that our base during this trip - it seems semi-central. Has anyone stayed at the Aston Waikoloa condo/rentals?
Also, I usually get upgraded to a Towncar or similar when I rent from Avis. Should I shoot for an SUV or perhaps a four-door wrangler?