Alaka'i Aloha Maui logo
← Back to Waihou Spring Trail profile

Waihou Spring Trail - Deep Research Report

Deep Research Report

Last updated: April 22, 2026

What it is

The Waihou Spring Trail is a hike located in the Waihou Spring Forest Reserve in Upcountry Maui, near Makawao. It features a pine forest, with both non-native species like Monterey cypress and eucalyptus, and native trees such as 'Ala'a, Hala Pepe, and Koa. The reserve was established in 1909 to protect Waihou Spring, one of the few perennial springs on the west slope of Haleakalā. The trail system includes an upper loop and a steeper spur trail that descends into Kailua Gulch to Waihou Spring, where visitors can see a mossy basin, large boulders, and old irrigation tunnels carved into lava. Depending on recent rainfall, small waterfalls may be visible at the spring. The trail is also bordered by a century-old experimental tree plantation.

Visitor experience

Travelers choose the Waihou Spring Trail for a peaceful, family-friendly hiking experience in a cooler, higher elevation environment compared to Maui's beaches. The scent of eucalyptus and pine fills the air, and hikers can enjoy bird songs and mountain breezes. The hike offers a varied landscape, from broad dirt roads through pine rows to a steeper descent into a gulch. It provides a good workout without being overly strenuous for most of its length. The unique sight of the spring, old water diversion tunnels, and moss-covered rocks in Kailua Gulch is a highlight for many. It can be approached as an easy stroll if the steep descent to the spring is skipped. Some parts of the upper loop are suitable for trail running.

Logistics

Area & Access: The Waihou Spring Trail is located in Upcountry Maui, approximately five miles up Olinda Road from Makawao town. From Paia, follow Baldwin Avenue through Makawao, which then turns into Olinda Road. The trailhead is past the Maui Forest Bird Recovery Project on the left.

Reservations & Permits: No reservations or permits are required to hike the Waihou Spring Trail.

Timing: The trailhead is open from 7 AM to 7 PM year-round. It is often recommended as a morning or pre-lunch activity due to cooler temperatures at this elevation.

Parking: There is a large parking lot directly off Olinda Road, which can accommodate over a dozen vehicles.

Duration & Difficulty: The full trail, including the spur to the spring and the loop, is approximately 1.7 to 2.5 miles (1.7 km to 3.5 km) round trip, depending on the route taken. It is generally considered mild to moderate in difficulty. Completing the full hike can take anywhere from 1 hour to 90 minutes or 1-2 hours if not rushed. The initial sections are relatively flat, but the descent to Waihou Spring involves steep switchbacks, dropping about 330 to 600 feet into Kailua Gulch, which can be challenging.

Activity Type: This is a good half-day activity, especially if exploring the spring area. It can be a quicker stop if only doing the upper loop.

Safety and cautions

Terrain and Conditions: The trail can be very slick, slippery, and muddy during or after rainfall, especially the steep switchbacks leading to the spring. Sturdy, closed-toed shoes are a must.

Weather: Upcountry Maui generally experiences cooler temperatures than the coast, and rain showers are possible, so bringing raingear is advisable. The spring itself may be dry depending on recent weather conditions.

Landslides/Rockfall: The steep mountain terrain near the spring can be prone to landslides or rockfall, especially when the ground is saturated from heavy rainfall. Hikers should exercise caution, especially in Kailua Gulch, as rockfall has been known to occur in Hawaiian gulches. One source specifically warns that the lower switchback portion of the trail to Waihou Springs is crumbling and should be avoided.

Navigation: While the trail is generally easy to follow, it's important to stay on marked trails. There is a "private property" sign near a junction where hikers should continue downhill to stay on the public trail.

Wildlife: Hikers might encounter native birds and possibly axis deer. Mosquito repellent is recommended.

Cultural/Land Management: Hawaiian land is considered sacred; hikers should stay on the trail and take nothing but photos, leaving nothing but footprints. Camping is not allowed.

Editorial take

The Waihou Spring Trail is an excellent choice for visitors seeking a refreshing and peaceful nature walk away from the coastal heat, particularly those staying in or exploring Upcountry Maui. It suits families with older children or individuals looking for a moderate workout amidst unique forestry. Prioritize this hike if you appreciate diverse flora, the scent of pine and eucalyptus, and the appeal of a historical forest reserve with a distinct geological feature like the spring and old water tunnels.

Travelers who should skip it include those with mobility issues or very young children, especially if they intend to descend to the spring, due to the steep and potentially slippery switchbacks. Those looking for dramatic ocean views or extensive waterfall experiences might also find this trail less appealing, as the spring is often a slow drip rather than a powerful cascade, and viewpoints can be overgrown.

Do not confuse Waihou Spring Trail with other strenuous backcountry hikes on Haleakalā that involve more significant elevation gain or length. While it's in Upcountry, it offers a distinct forest experience compared to the drier, volcanic landscapes found higher on Haleakalā.

Source notes

Alaka'i Aloha Logo

Ready to see the highlights?

View the main activity profile for Waihou Spring Trail