Kauai’s Wailua River runs from the volcanic Wailua crater to the coast, flowing through the Wailua River State Park.
It’s Hawaii’s only navigable river, so make the most of the experience with a boat tour or cruise into the island’s rugged interior.
Along the way, you’ll pass waterfalls, nature reserves and walking trails as the river slowly meanders its way inland.
The river’s highlights are Fern Grotto, Wailua Falls and Secret Falls, reached by a secluded walking trail.
The Wailua River enters the ocean on the island’s east coast, near the settlement of Wailua.