There are Moai statues everywhere, with beautiful hiking trails and scenery everywhere you look. Pay for the national park tickets and join a formal tour. The tour guides are native Rapa Nui people and can point things out, plus give you a history and perspective that you won't get just wandering around or from a guidebook. Over several hundred years, the Rapa Nui people's greed and pride caused them to completely destroy their own environment and, thus, civilization.