Hosmer Grove Trail
What to Expect
Safety Advisory
At nearly 7,000 feet elevation, temperatures can drop into the 40s even on summer mornings — bring a layer, especially if you're coming straight from sea-level Maui where it was 85 degrees an hour ago.
The trail can be slick with mud and fallen leaves after rain, particularly through the shaded grove section — wear shoes with some grip rather than flip-flops.
Trail Details
Pro Tips
Arrive early morning when the native birds are most active — the endemic honeycreepers feed in the native shrubland section and are noticeably quieter by mid-morning.
Pair this with the nearby Haleakala summit sunrise visit: hike Hosmer Grove afterward while you wait for the visitor center to open, since the trailhead is right off the park road at about 6,800 feet.
Bring binoculars specifically for the native forest section on the loop's back half — the iiwi (scarlet honeycreeper with a curved salmon-colored bill) tends to perch in the ohia trees and is nearly impossible to appreciate with the naked eye.