Cadillac Mountain from Champlain Mountain, Acadia
US national parks and monuments

Cadillac Summit Road reservations

Photo: Fredlyfish4, CC BY-SA 4.0

Driving Acadia's Cadillac Summit Road needs a vehicle reservation from May 20 to Oct 25, 2026. 30% of slots open 90 days ahead; the rest, two days before.

Last checked 13 Sep 2026. Source: National Park Service (nps.gov).

  • Act on this

    Driving to the summit needs its own vehicle reservation

    A vehicle reservation is required for Cadillac Summit Road from May 20 through October 25, 2026, and it is separate from the park entrance pass.

    What to do: Reserve a vehicle slot before driving up, and budget for both the reservation and the pass.

    When: May 20–Oct 25, 2026 · National Park Service ↗

  • Act on this

    70% of sunrise slots only appear two days ahead

    Thirty percent of sunrise and daytime vehicle reservations are released 90 days ahead at 10 AM ET; the other seventy percent are released two days before the reservation date.

    What to do: If the 90-day batch is sold out, be back at 10 AM ET two days before.

    When: 90 days and 2 days ahead, 10 AM ET · National Park Service ↗

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