The road to Hana was WELL worth it. We used the Maui Revealed Book and it was the best 15 bucks we could have spent. There was one waterfall location in particular, that was especially beautiful after a 20 minute hike over boulders. It may have been the most beautiful waterfall I saw on the road to Hana. Like I said, it takes a little work to get to it, but it is well worth it. The name of the falls were Punalau Falls. It is fairly early in the drive.