I'm planning with some friends for a trip to Hawaii. Havent looked into it much at all yet, but we're trying to plan out some kind of "adventure" that would be in the 4-8 day range. Seems like there are a lot of great hikes, I've heard a lot about great kayaking. would be cool to combine the two. ideally we'd spend the majority of the time away from populated areas, camping the whole time. and looking for a bit of a challenge rather than an easy trip. any advice on where to start? any previous trips I could look at? We're just a bit lost on where to start looking.