Straits State Harbor

Mackinaw City, Michigan · Campsite openings, cancellations & sold-out date alerts

Lakes & RiversWatched around the clock

Weekend availability

Live from Michigan State Parks · checked Sep 10, 1:06 AM PT

Sold out 5 of the next 5 weekends — exactly when cancellation alerts earn their keep.

  • Fri, Sep 18
    Sold out
  • Fri, Sep 25
    Sold out
  • Fri, Oct 2
    Sold out
  • Fri, Oct 9
    Sold out
  • Fri, Oct 16
    Sold out
Alert me when a sold-out weekend opens

Sold out for your dates? We'll tell you the second a site opens.

Cancellations at Straits State Harbor get rebooked in minutes. We check Michigan State Parks around the clock and alert you before the crowd refreshes the page.

Set an alert for Mackinaw City$9.99/mo — why we charge

Not ready to subscribe? Get a free weekend heads-up.

We'll email you if Straits State Harbor opens up for a weekend you pick. No account needed.

Park type

Lakes & Rivers

Michigan State Parks system

Online booking

Available on Michigan State Parks

Official state reservation system

Alert coverage

Checked around the clock

Openings, cancellations & new dates

Where Straits State Harbor is

Mackinaw City, MI 49701

45.7791, -84.7221

Get directions

Getting a campsite at Straits State Harbor

How do I get a campsite at Straits State Harbor when it's sold out?

Cancellations happen constantly — the trick is being first to know. Set an alert for your dates and we'll watch Straits State Harbor on Michigan State Parks around the clock, then notify you the moment a site opens. Alerts run on a Pro subscription ($9.99/mo, cancel anytime).

When do campsites usually open up at Straits State Harbor?

Whenever someone cancels. Most reservation systems refund less the closer you get to arrival, so cancellations cluster in the days before a stay — but the openings themselves are unpredictable, which is exactly why watching for them beats refreshing the page.

Where do I book a campsite at Straits State Harbor?

Reservations for Straits State Harbor are made on Michigan State Parks, the official booking system for Michigan State Parks. GetParkAlerts is independent — we tell you when a site opens; you book it directly on the official site.

Parks near Straits State Harbor

Flexible on where you camp? Watch a few of these too — more parks, better odds.

All Michigan lakes & rivers →Browse all Michigan state parks →All Michigan camping — parks, federal & military →Open this weekend →Sold out this weekend →Michigan closures & advisories →See every Michigan park on the map →