Best beaches and spots for snorkeling in Oahu Hawaii include Hanauma Bay and Shark's Cove on North Shore. For US beaches in Hawaii, swimming and snorkeling activities with turtles and fish! Best Oahu beaches give you things to do in Oahu near hiking trails, food, shopping. USA travel destinations for bucket list world adventures when on a budget with Hawaii vacation ideas! Day trip itinerary away from Waikiki and Honolulu! Add snorkeling gear to Hawaii packing list, what to wear in Hawaii.