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Supply Trail
Located within the Upcountry Maui & Haleakala Region on Maui
Guide Snapshot
A quick fit check before you commit to this trail.
Difficulty
Challenging
Distance
About 7 miles round trip
Estimated time
3-5 hours
Elevation & terrain
Steep subalpine climb to Halemauu connection
Family fit
Experienced hikers
Highlights
Haleakala · Birding · Workout
Haleakala National Park Hiking Trails
Haleakala Summit Area
If you’re visiting Haleakala National Park and want a great hike with beautiful views of North Maui, the Haleakala crater, and the chance to observe local Hawaiian plants and wildlife, the Supply Trail offers just what you’re looking for.
Supply Trail starts on the road that leads to Hosmer Grove Trail. Start off by parking your car in the Hosmer Grove campground, where you’ll find a few parking spots along the road. From there, walk back along the road to the trailhead sign. Note that we have heard from folks who say there is no sign here; however, we were lucky enough to spot one on our last hike. If you don’t see one, you’ll still be able to distinguish the trail as you leave the paved road and head into the open field.
Trail day tools
Before you drive to the trailhead, check the trail and weather layer.
Hawaii hikes can change quickly with closures, rain, mud, heat, and daylight.
You’ll be trekking through native subalpine shrubland that pervades this area, and some of the brush can be quite high. The trail is rather rocky and it winds up over a series of gentle swithcbacks. This is great opportunity for birdwatching, too.
The Supply Trail is fairly steeply graded from the start, but becomes even steeper as it approaches the connection with the Halemauu Trail at 3.5 miles in.
As you reach the end of the Supply Trail, head down the Halemauu Trail about ¼ mile for some simply spectacular views of Haleakala’s crater.
As with all Haleakala hikes, be sure to have adequate sun protection, as the elevation here means the sun’s rays– even on a cloudy day– are brutal. You’ll also want to have anything else you’ll need for the trail, especially if you’ll be camping. Check out our Haleakala camping packing list for more information.
Founder & certified Hawai'i travel expert with 20+ years in Hawai'i tourism, University of South Carolina climate-research training, and NOAA weather-station experience.
Dry conditions on Oʻahu today, with breezy wind in exposed areas. Drier weather continues through Wednesday as moisture clears out.
A medium-sized northwest swell will bring elevated surf to north and west-facing shores tonight through Sunday morning—conditions may briefly reach advisory levels. East-facing shores stay rough through the weekend. Winds remain breezy through Sunday, easing slightly Monday and Tuesday before picking up again Wednesday. A Small Craft Advisory is active through Monday morning for most coastal waters due to wind and sea state. Scattered showers arrive Thursday into Friday.
South and west shore beaches work well through Sunday for calmer conditions. North shore is worth watching tonight and Sunday morning if you're drawn to bigger waves.
0:000:54
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Skies are drying out across Maui today through Wednesday as moisture clears. Winds will be noticeably breezy, especially in exposed and terrain-favored spots.
North and west-facing shores will see elevated surf tonight into Sunday morning as a medium-sized northwest swell moves in—conditions may briefly reach advisory levels. East-facing shores stay rough through the weekend. A Small Craft Advisory is in effect through Monday morning for coastal waters due to wind and sea conditions. Winds ease slightly late Monday and Tuesday, then strengthen again Wednesday. The next chance of scattered showers arrives Thursday through Friday.
If you're heading to the beach, south and west shores are your best bet through Sunday. North shore is worth watching tonight and Sunday morning if you're into bigger waves.
0:000:53
Voice
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Mostly clear and dry today on the Big Island, with noticeably breezy winds in exposed areas and terrain-favored spots. That breeze continues through Sunday.
North and west-facing shores will see elevated surf tonight into Sunday morning as a medium-sized northwest swell arrives—conditions may briefly reach advisory levels. East-facing shores stay rough through the weekend. South shores stay small. A Small Craft Advisory covers most coastal waters through Monday morning due to wind and sea conditions. Winds ease slightly late Monday and Tuesday, then pick up again Wednesday. Scattered showers arrive statewide Thursday to Friday.
Head to the south and west shores for beach and snorkeling through Sunday. If bigger waves interest you, the north shore has surf to watch tonight into Sunday morning.
0:000:49
Voice
Read the transcript
Drier air is moving in through Wednesday. Winds will be noticeably breezy, especially in exposed areas.
Tonight into Sunday morning, a medium-sized northwest swell will push elevated surf onto the north and west shores—conditions may briefly reach advisory levels. East-facing shores stay rough through the weekend. A Small Craft Advisory is in effect through Monday morning for coastal waters due to wind and sea state. Winds ease slightly late Monday and Tuesday, then pick up again Wednesday. Scattered showers arrive Thursday or Friday.
Hit the south and west shores for swimming and snorkeling through Sunday. If you want to watch big waves, the north shore is worth a look tonight into Sunday morning.
Created with AI from the official NWS forecast discussion · verify with NWS before heading out
