The summit visitor experience centers on the Puʻu ʻUlaʻula (Red Hill) overlook, reached by a short paved walk from the upper parking area at 9,740 ft. The enclosed glass observation building provides wind shelter while allowing panoramic views into the crater and, on clear days, across to Mauna Kea and Mauna Loa on the Big Island. This is the destination for sunrise visitors and most day-trip visitors who are not hiking into the crater.

• The 0.2-mile walk to the summit gains about 280 ft — feels harder than it looks at 10,000 ft
• Wind and cold are intense at this exposed ridge — dress in full warm layers regardless of season
• Sunrise visits require advance reservation for entry between 3:00 AM and 7:00 AM
• Kaluaʻoi Overlook offers crater views from the road without the walk — a good option for visitors with mobility limitations

Keoneheʻeheʻe is the primary crater entry trail and the most iconic hiking experience on Haleakalā. The trail descends steeply from the summit trailhead (9,740 ft) into the crater floor across loose volcanic cinder and solidified lava, passing surreal cinder cones and the rare ʻāhinahina (silversword) plants found nowhere else on earth. The descent feels manageable; the return is the challenge — 2,800 ft of gain on loose cinder at altitude, exposed to sun and wind, is exhausting for any fitness level.

• Trailhead at Keoneheʻeheʻe parking area, near the summit visitor center
• The first mile feels easy — the crater descent lures hikers deeper than their return energy allows
• Stay on the marked trail at all times — crater floor navigation is harder than it looks and silverswords are easily damaged by foot traffic off-trail
• Most day hikers turn around at the 2-mile mark or crater floor junction; going further commits to a very long return
• The trail can be combined with the Halemauʻu Trail for the full 11-mile traverse (requires shuttle)

The Halemauʻu Trail enters the crater from the park road at approximately 8,000 ft via dramatic switchbacks and a cliff face with views over the crater wall. The route descends to the crater floor through the Ko’olau Gap, passing the Hōlua camping area en route. The approach and crater entry scenery differs completely from Sliding Sands — more dramatic cliffs and fewer cinder plains. The lower trailhead elevation means a longer car shuttle from the summit area if combining with Keoneheʻeheʻe.

• Trailhead on the park road at the 8,000 ft level, roughly 4 miles below the summit
• The switchback descent into the crater is dramatic and exposed — allow extra time in wet or windy conditions
• Hōlua backcountry campground and cabin along this route (permit required)
• Best used as one end of the full crater traverse when combined with Keoneheʻeheʻe

The full crater traverse linking the two major trailheads is the ultimate Haleakalā day hike and one of the most extraordinary walks in the Hawaiian Islands. The route crosses the full diameter of the crater, passing cinder cones, lava flows, silversword fields, and the backcountry cabin sites at Hōlua and Palikū. It is point-to-point — there is no NPS shuttle, so hikers must arrange a private car or bicycle shuttle between the Keoneheʻeheʻe trailhead (near summit) and the Halemauʻu trailhead (lower on the park road).

• Most hikers start at Keoneheʻeheʻe (higher end) and finish at Halemauʻu — this puts the big descent first and the climb out on fresh legs
• No NPS shuttle — leave a car at Halemauʻu, or arrange a bicycle drop-off at the lower trailhead and ride down the park road
• Carry 3+ liters of water — no reliable water sources in the crater; Hōlua and Palikū cabins have treated water when staffed
• This is a full wilderness day — be self-sufficient from the moment you enter the crater