Supply Trail

The Supply Trail begins at Hosmer Grove within Haleakalā National Park. Parking is available at the Hosmer Grove parking area. It's advisable to arrive early, especially during peak times, as this is a popular starting point for various park activities.

Yes, the Supply Trail is located within Haleakalā National Park, so standard park entrance fees apply. You will need to pay the park entrance fee to access the trailhead. Check the official National Park Service website for current fee information and any reservation requirements.

The trail features a rocky path that winds through native alpine shrubland. It starts as a short service road before narrowing into a single track. You'll cross several streams, which can form waterfalls at lower elevations. The surface can be rough, so sturdy footwear is recommended.

You'll experience a predominantly native Hawaiian forest, offering a unique chance to observe endemic plants and birds. On clear days, the trail provides breathtaking views of North Maui and the Haleakalā crater, often rising above the cloud cover. Views of eroded valleys in the Ko'olau Gap are also notable, especially as you approach the crater rim.

While the trail can be jogged year-round, clear days offer the best views of North Maui and the Haleakalā crater. Given its elevation, weather can change rapidly. Mornings often provide clearer skies before clouds roll in. Always check the weather forecast for Haleakalā National Park before heading out.

The Supply Trail is rated as moderate difficulty. It's an entirely uphill journey, gaining over 300 meters in elevation. While some sections are not overly steep, it is fairly graded from the start and becomes steeper closer to the Halemauʻu Trail connection. Beginners with a reasonable level of fitness can manage it, but should be prepared for a consistent climb.

The Supply Trail is primarily an out-and-back route if you intend to return to Hosmer Grove. However, it connects to the Halemauʻu Trail, offering options for longer, more complex routes if you arrange for a shuttle or have a second vehicle.

Yes, the Supply Trail connects Hosmer Grove to the Halemauʻu Trail Overlook along the crater rim. The route also passes through sections of the Supply Trail and the Halemauʻu Trail.

No, pets are generally not allowed on trails within Haleakalā National Park, including the Supply Trail, to protect native wildlife and ecosystems. Service animals are an exception.

Beyond the stunning views, a significant feature is the opportunity to witness a native Hawaiian forest, largely untouched by non-native species. At approximately 1.3 miles (2.1 km) into the trail, you'll pass a large rain catchment, which serves as a useful checkpoint. The trail culminates in spectacular views of Haleakalā's crater, especially when connecting with the Halemauʻu Trail.

Given the rocky and potentially rough terrain, sturdy jogging shoes with good grip are essential. Layers of clothing are recommended due to changing weather conditions at elevation. Bring plenty of water, as there are no water sources on the trail itself. Sun protection (hat, sunscreen) and snacks are also advisable.