This is my favorite valley view on the Big Island. Many people will tell you to go to Honaka'a to go to Waipio Valley. Nope, go here - it a long drive to the end of the road and on of the most gorgeous bluffs on Earth. This valley is the start of a series of "gulches" that cover the Northeastern part of the Big Island behind the Kohala Mountain range. Pololu is majestic and while the scenic point is often busy with tourist cars very few people walk into the valley at this point so its actually LESS touristy that Waipio if you walk all the way down (about 45 min for a slower walker). You have to be a bit fit and balanced. I wouldnt take an older, injured or otherwise unfit person down this walk and into the Valley but young at heart visitors will thrill at the flora on the walk and the "payoff" of an amazing river meeting the Pacific at the mouth of the Valley. Must visit spot on the Big Island.