Wailuku River State Park
Four separate streams fall into a series of circular pools here, forming the Peepee Falls. The resulting turbulent action—best seen after a good rain—has earned this stretch of the Wailuku River the nickname Boiling Pots. There's no swimming allowed at Peepee Falls or anywhere in the Wailuku river, due to dangerous currents and undertows. www.hawaiistateparks.org/parks/hawaii/Index.cfm?park_id=57.