As first time visitors to O’ahu, we had no experience with tours of the island and wanted a great experience. My husband did some online research before our visit and because of great past reviews, we selected "The Awesome Circle Island Tour." (We booked through Viator). We were not disappointed!! Right from the start, our tour felt personal with a warm welcome and jovial conversation throughout. (It didn't hurt that our tour group only totaled 10 passengers). Our tour bus was clean and comfortable with big windows to allow maximum site lines. Our driver and guide, "Captain Vince," engaged with each member of the group - by name - and was especially inclusive of the kids on board. Vince is gregarious, personable, knowledgeable, and makes you feel at ease - all important characteristics of a great tour guide. By the end, he made us feel like a family! We saw great views from Diamond Head, Halona Blowhole, visits to cool stops like a macadamia nut farm, Waimea beach, Iolani Palace and Dole Plantation. We stopped for lunch at Fumi's Shrimp Shack ($ not included in the cost of the tour), which was excellent. We then stopped at a produce stand for a fried lumpia, something I'm sure I wouldn't have done without Vince's recommendation. I personally appreciated that Vince knew other tour guides and was friendly with all of them but wasn't shy about telling us he wanted to stay ahead of the other tour groups, lest we suffer bottle necking of large crowds (...and restrooms!) We learned a number of Hawaiian words and sayings, adding the all-important local flavor to our tour. By the end of the day, 9.5 hours had flown by, and I was a little sad to leave our makeshift tour group family. My husband and I both felt our time (and money) was well spent on "The Awesome Circle Island Tour." I'd highly recommend this tour for anyone looking to see the sites and become family with strangers... even for just one day.