We're going to be in Oahu for about a week in late November, and are interested in hiking, scenery, and wildlife encounters (and some beach lounging). Ideally when we're out in nature we'd like to be in spots that are beautiful but perhaps off the beaten path, or crowd free if that's possible. Unless there is something that is simply a must-see (I've done Pearl Harbor). Any hidden gems to recommend on the island? Most scenic intermediate/advanced hikes? Best true wildlife experiences (i.e. not zoos or captive marine life)? Any hotels or resorts with "adult only" areas, or areas with age limits? We're young and fit, and looking forward to exploring the island. I am committed to staying on Oahu and I appreciate any recommendations!