Things to do in Oahu: Scenic drive around Oahu, Hawaii. Hawaii vacation tips with things to do on Oahu as free activities like hikes, beaches, snorkeling from Honolulu and Waikiki to the North Shore. Checklist of Oahu activities for Hawaii bucket list destinations with the best travel photography spots for vacation pictures! Use it as a potential day trip itinerary as a self-guided island tour and island road trip to see Hawaii on a budget! Road trip adventure for the best Hawaii vacation!