Hey Christian, i just moved back to Jersey from Oahu. Sorry to say there have been no Xterra activities there for over a year. That's because 99% of the X's out there are 4x2. It's a shame because it seems 1 out of every 5 cars you see are an Xterra. There is just not enough interest nor enough land to go off roading. Kaiena Point, which is illegal to offroad on, is often used by the locals, but no serious 4x4'ing there. It's always fun to rip across the pineapple fields, but again that is illegal and if you get caught it will be hefty fine. You can get a permit for Peacock Flats, i've never been but i hear it gets real crowded.

It's actually kinda funny, i've lived across the country and never have I seen so many trucks set up for serious 4x4'ing with no place to go. Seems every truck is jacked up at least a foot sitting on top of swampers. Even all the beaches are illegal to drive up on. On the positive side, you'll have tons of fun in hawaii. Hope that helps some....