Keahua Arboretum


Sitting prettily at the top of Kuamoʻo Rd around seven miles from Wailua, this arboretum has grassy fields, a gurgling stream and groves of rainbow eucalyptus and other towering trees. Locals come here to picnic and to swim in the freshwater stream and pools, but be aware that the water is infected with leptospira bacteria which can cause potentially serious infections.


Lonely Planet's must-see attractions

Nearby attractions

1. Kauaʻi's Hindu Monastery

1.94 MILES

Serious pilgrims and curious sightseers are welcome at this Hindu monastery, set on 70 acres and surrounded by verdant forest above the Wailua River. The…

2. Wailua Falls

3.68 MILES

Made famous in the opening credits of Fantasy Island, these falls appear at a distance. When they are in full flow and misting the surrounding tropical…

3. Kamokila Hawaiian Village

4.29 MILES

This 4-acre site along the Wailua River has reproductions of traditional Hawaiian structures amid thriving gardens of guava, mango and banana trees. While…

4. ʻOpaekaʻa Falls Lookout

4.33 MILES

While not a showstopper, these 150ft-high waterfalls make for an easy roadside stop, less than 2 miles up Kuamoʻo Rd. For the best photographs, go in the…

6. Wailua River State Park

4.49 MILES

To ancient Hawaiians, the Wailua River was among the most sacred places across the islands. The river basin, near its mouth, was one of the island’s two…

7. Poliʻahu Heiau

4.53 MILES

Perched high on a hill overlooking the meandering Wailua River, well-preserved Poliʻahu Heiau, a luakini (temple dedicated to war god Ku), is named after…

8. Smith's Tropical Paradise

5.08 MILES

Other gardens might have fancier landscaping, but you can’t beat Smith’s for value. Take a leisurely stroll along a mile-long loop trail past a serene…