A flexible full-day loop around Oʻahu, perfect for first-timers wanting to see it all—surf spots, mountain cliffs, cultural sites, and beach towns. Start after 9 a.m. to avoid traffic, grab malasadas at Leonard’s, and use the Shaka Guide app for GPS narration. Highlights include Makapuʻu, Byodo-In, Waiahole Poi Factory, the North Shore, and Haleʻiwa. Pack a swimsuit, stop for lunch in Kahuku or Haleiwa, and plan either a happy hour, shave ice stop, or dinner before returning to town. Circle Island tours are also bookable as a private tour.