Booking odds · May
Dunbar Group Site in May: How Hard Is It to Book?
The verdict
Booking difficulty 8 out of 10. Competitive. Be ready when the booking window opens.
May rarely sells out — you can often book close to your trip.
Dunbar Group Site in May scores 8 out of 10 for booking difficulty — hard. Competitive. Be ready when the booking window opens.
Across the last 3 years of reservation history, the typical May booking was locked in about 84 days before arrival, with the campground running roughly 51% full that month. The lightest arrival day is Tuesday, so shifting to a midweek start is the single easiest way to improve your odds.
How far ahead people book
Weekend vs. weekday demand
Best odds: arrivals are lightest on Tuesday in May. A midweek arrival is your easiest booking.
Get notified when a spot opens
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When May reservations open
Reservations for Dunbar Group Site in May 2027 operate on a rolling 6-month window releasing at 7:00 AM ET.
May 1 stays open
November 1, 2026
at 7:00 AM ET
Release style
6-Month Rolling Window
Releases daily 6 months ahead at 7:00 AM ET
Campsites for May 1, 2027 become bookable on November 1, 2026 at 7:00 AM ET. Each subsequent date throughout May releases day-by-day exactly 6 months prior to arrival.
Facility note: Standard Recreation.gov 6-month rolling window: sites become bookable 6 months before arrival at 7:00 AM ET.
How much does it cost to camp at Dunbar Group Site?
The group camping fee is $100 per night. There is no discount for senior or access pass holders on group sites. A valid entrance pass or receipt is require for all visitors. You may pay upon arrival or purchase in advance. Indiana Dunes honors Federal interagency passes (annual, senior, access, 4th grade, Golden Age, etc.). For more information, visit the Indiana Dunes Fees & Passes page.
Fee details as listed on Recreation.gov. Rates and passes change by season, so confirm the current price on Recreation.gov before you book.
Easier nearby options in May
If your dates are flexible, these nearby campgrounds are typically easier to book.
Dunbar Group Site in May: common questions
- How hard is it to book Dunbar Group Site in May?
- Dunbar Group Site rates 8 out of 10 for May — Hard. Competitive. Be ready when the booking window opens.
- How far in advance should I book Dunbar Group Site for May?
- The typical May reservation was made about 84 days before arrival, so plan to book as early as your dates allow.
- When do May reservations open for Dunbar Group Site?
- Reservations for Dunbar Group Site in May 2027 open on a rolling 6-month window. Sites for May 1 become bookable on November 1, 2026 at 7:00 AM ET, with each subsequent day releasing day-by-day 6 months ahead.
- What is the best day to arrive at Dunbar Group Site in May?
- Arrivals are lightest on Tuesday. A midweek arrival is usually the easiest booking.