Waimanu Valley, Big Island Hawaii

Waimanu Valley is one of the most incredible hikes not only in Hawaii but on the planet. Black sand beaches, an 8-mile hike through rainforest, diverse flora, 1,000ft waterfalls, mountainous terrain, and a place where you can build a lean-to with fish and coconuts — all at once. Ancient Hawaiians used this valley to grow Taro for poi. We parked at the art gallery ($20/day) and hiked in for a 3-day adventure.

The waterfalls drop 1,000ft and could be heard constantly. A tiered 300ft first-tier waterfall had us swimming in a remote pool — tour guide helicopters spotted us and waved. Fire ants on the log crossing were memorable. Coconuts were the reward. The beach had green and yellow tints in the black sand. Waimanu Valley is quite possibly the best hike and best campground I have ever been to — worth a trip to Hawaii on its own. Highly recommended: 3 days, water filter, trekking poles.