Cancellation alerts

William O Brien State Park

We watch every site at William O Brien State Park 24/7, then email you the moment a cancellation opens up.

100% of weekends booked at top sites·Peak Jul–Sep·127 sites

Set up an alert for William O Brien State Park →

Pick your dates, pick the sites you want, we do the watching.

Park favorites

The 10 most popular campsites at William O Brien State Park

Booked on virtually every weekend during peak season (Jul–Sep). They reserve months ahead and rebook within minutes when cancelled — set up an alert and we'll email you the moment one opens.

Site 59

Best here

Ranked #1 of 127

Campsite · Sleeps 6

Site 16E

Top pick

Ranked #2 of 127

Campsite Electric · Sleeps 6

Site 18E

Top pick

Ranked #3 of 127

Campsite Electric · Sleeps 6

Site 8E

Top pick

Ranked #4 of 127

Campsite Electric · Sleeps 6

Site 30E

Top pick

Ranked #5 of 127

Campsite Electric · Sleeps 6

Site RVRS

Top pick

Ranked #6 of 127

Group Site · Sleeps 50

Site COPA

Top pick

Ranked #7 of 127

CABIN · Sleeps 5

Site 47

Top pick

Ranked #8 of 127

Campsite · Sleeps 6

Site GC1

Top pick

Ranked #9 of 127

Group Site · Sleeps 35

Site GC3

Standout

Ranked #10 of 127

Group Site · Sleeps 35

These sites rebook within minutes of being cancelled. Set an alert at William O Brien State Park and we’ll email you the moment one opens up.

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About this park

Discover a beautiful setting for canoeing, fishing, hiking, and other recreation along the banks of the St. Croix River. In winter, 12 miles of groomed trails await classic and skate skiing enthusiasts. Interpretive programs are offered year-round. Nature programsHiking trails Paved bike trails Groomed classic x-country skiVisitor center Picnic shelter Swimming beachFishing pier Drive-in boat accessWinter warming shelter Canoe Rental Kayak Rental Stand-up Paddleboard Rental