Haleakalā National Park · caps RVs at 25 ft
Haleakalā's summit road climbs 10,023 ft in 38 miles — steepest sustained paved ascent on earth. Hosmer Grove and Kīpahulu hold 25-ft rigs, and the sunrise window needs a timed-entry permit.

25ft
None (dry)
No
Year-round (Kīpahulu) · seasonal (Hosmer Grove)
The road to Haleakalā summit climbs from sea level to 10,023 ft in 38 miles — the steepest sustained ascent of any paved road in the world per US Geological Survey grade studies — and the temperature drop runs 30°F in winter from coast to summit. Hosmer Grove Campground at 6,800 ft accepts rigs up to 25 ft, dry-camp, first-come-first-served. Kīpahulu Campground at the coastal Kīpahulu District (the famous Pīpīwai Trail trailhead) is similar at 25 ft. No dump station in either. Sunrise viewing at the summit requires a separate timed-entry reservation, $1 admin fee, opens 60 days ahead; rigs over 25 ft are physically restricted from the summit road's final switchback section above Kalahaku Overlook.
Primary sources
How to book this park
Reservations + adjacent staging
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Other national parks in Hawaii
Hawaii rules · last verified 2026-05-10
- Rental tax
- 7.00%
- Min driver age
- 21+ std · 25+ Class A
- Gravel roads
- Varies by rig — verify with vendor
- Generator quiet
- 22:00-07:00
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