We booked two trips through this company. One to visit volcanos national park on the big island from Oahu and the second was a Pearl Harbor and circle island tour. Both were excellent and worth the money. This company uses mim-busses that allowed us to travel through ares that restrict the larger vehicles. Our tour guides were local Hawaiians who were happy to share their home, culture, and sense of humor with us. I have been on Oahu tours before with other companies and I would recommend discover Hawaii day tours overall.