About Keahua Forestry Arboretum
Keahua Forestry Arboretum offers a refreshing cold spring experience nestled in lush Hawaiian greenery. This swimming hole features a gentle cascading stream that creates a playful environment for families seeking a nature outing. Its combination of accessible waters and vibrant forest surroundings makes it a unique stop among hot springs in Hawaii, standing out as a cool, soothing alternative.
Getting There
You reach Keahua Forestry Arboretum with ease via a drive-up route—no hiking required, making it accessible for visitors of all ages. Simply take RT 51 east from the airport, then RT 56 north toward Wailua, and turn left after the Wailua River Bridge onto Kuamoa. Parking is ample and close by, allowing a stress-free start to your visit.
What to Expect
The swimming hole at Keahua is shallow but invigorating, with clear, cool water flowing through the landscape. The atmosphere remains peaceful and quiet, with few other visitors, providing a tranquil spot to relax or let kids splash and play in the stream’s gentle currents. Natural facilities are minimal, preserving the arboretum’s authentic outdoor environment.
Tips for Visitors
Visit year-round but avoid times of heavy rain, as flash flooding can occur unexpectedly. Bring water shoes for comfort on the rocky bottom and towels to dry off in the humid forest air. Although fees are unknown, no formal amenities are present, so prepare for a simple, nature-rooted escape. Keahua Forestry Arboretum stands among the best of Hawaii swimming holes for a calm and refreshing day outdoors.