Campsite Odds

Campground · HI

Hosmer Grove Campground

HI · Haleakalā National Park

Booking is hardest here in January (6/10) and easiest in May (4/10). Pick a month below for the full breakdown.

Season at a glance

Booking difficulty by month

12-month reservation season
  1. Jan6
  2. Feb6
  3. Mar5
  4. Apr5
  5. May4
  6. Jun4
  7. Jul4
  8. Aug4
  9. Sep5
  10. Oct5
  11. Nov6
  12. Dec6
1 · Easy10 · Lottery

Midweek tip: in the busiest month (January), arrivals are lightest on Thursday — shift your dates to improve your odds.

Booking window

When reservations open

Booking window

Reservations open on a rolling 6-month window at 7:00 AM America/New York.

For example, sites for January 15, 2027 become bookable on July 15, 2026. Set a reminder a few minutes before release for the best shot.

Standard Recreation.gov 6-month rolling window: sites become bookable 6 months before arrival at 7:00 AM ET.

Facilities

Sites & amenities

  • 6 tent-only sites

Activities: CAMPING, HISTORIC & CULTURAL SITE, SCENIC DRIVE, STAR GAZING, VISITOR CENTER, WILDLIFE VIEWING

Location

Where it is