Hanauma Bay - Best beaches for snorkeling in Oahu. These are some Hawaii travel tips. For US beaches in Oahu Hawaii, there are activities like swimming and snorkeling with turtles and fish! Best Oahu beaches give you things to do with nearby hiking trails, food, and shopping. USA travel destinations for bucket list for world adventures when on a budget! So outside of Waikiki and Honolulu, put on the Hawaii itinerary! Add snorkeling gear to Hawaii packing list and what to wear in Hawaii.