My tour into the Waipio Valley via 4 wheel drive van was awesome. Best tour of my trip. The tour guide, Kala, was very knowledgable about the history, flora, and customs of the Islands. He was very polite and respectful of his guests and very fluent in Chinese as he gave the information in their language as well as English. The valley is gorgeous and the Black Sand Beach was well worth the 20 minute walk to it. Easy walk. flowers beautiful, interesting way of life among the people who live there and the double waterfalls at the end of the valley-breathtaking. Tasty lunch served and trip to Akaka Falls and Rainbow Falls great photo opportunity. I'd recommend this tour to everyone-especially if you get Kala for your guide.