What island/s? My inlaws are hawaiin, and we went there 2 years ago. I had a blast riding. I only got to ride 2 days though. Watch out for the roots, they're slippery even when it hasn't rained. My wifes relative took me thru some of the most bizarre stuff I've ever rode. We got to ride thru 2 different ranchs on the other side of the volcano and it took us 6 hours to get down. Some very good riding there. The next day I rode with the guys from So Maui Cyclery, they took us on some real fun rides, but somewhat short.