Kailua Beach - Oahu, Hawaii. Vacation tips with things to do in Oahu Hawaii as outdoor activities like biking, hikes, beaches, snorkeling from Waikiki, Kailua, Lanikai, Honolulu, with Oahu map. Checklist of Oahu activities for bucket list destinations. Use it as potential day trip itinerary as a self-guided tour with Hawaii cycling! North Shore has a bike path too! USA travel destinations for world adventures! Put outfits on Hawaii packing list for what to wear and what to pack for Hawaii!