Dos Rios State Park

Modesto, California · Campsite openings, cancellations & sold-out date alerts

State ParksSmall parkWatched around the clock

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

Cancellations at Dos Rios State Park get rebooked in minutes. We check ReserveCalifornia around the clock and alert you before the crowd refreshes the page.

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

Park type

State Parks

Small park

Online booking

Limited — check the park listing

Official state reservation system

Alert coverage

Checked around the clock

Openings, cancellations & new dates

Why campsites open up at Dos Rios State Park

California's refund rules create a predictable wave of cancellations. Because campers lose money if they cancel late, most drop their reservations right before the refund deadline — which means openings cluster about a week out from any given date.

If they cancel…They get back
7+ days before arrivalFull site fees refunded, minus the cancellation fee
2–6 days beforeFirst night's fee forfeited; the rest refunded, minus the fee
Under 2 days / no-showNo refund — all fees forfeited

Source: California State Parks camping policies (refund schedule for arrivals on or after July 1, 2026).

How booking Dos Rios State Park works

  • Sites are reservable up to 6 months ahead on a rolling window — each new date opens exactly six months out.
  • New inventory releases every morning at 8:00 a.m. Pacific Time.
  • There is no waitlist — a cancelled site just reappears in search, first-come, first-served.
  • Have your login and payment saved so you can book in under a minute when your alert lands.

Source: ReserveCalifornia FAQ (California State Parks).

Where Dos Rios State Park is

Modesto, CA

37.6014, -121.1597

Get directions

Getting a campsite at Dos Rios State Park

How do I get a campsite at Dos Rios State Park 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 Dos Rios State Park on ReserveCalifornia around the clock, then notify you the moment a site opens. Alerts run on a Pro subscription ($9.99/mo, cancel anytime).

How far ahead can I book Dos Rios State Park?

California State Parks campgrounds, including Dos Rios State Park, are reservable up to 6 months in advance on a rolling daily window — each new date becomes bookable exactly six months out, released at 8:00 a.m. Pacific Time. Peak summer and holiday dates at popular parks can sell out within minutes of release.

When do campsites usually open up at Dos Rios State Park?

Openings are driven by California's cancellation policy. Campers get a full refund (minus the fee) only if they cancel 7+ days before arrival; cancel 2–6 days out and they forfeit the first night; under 2 days there's no refund. That refund cliff produces a predictable wave of cancellations around 7 days before a date — the best window to catch an opening at Dos Rios State Park.

Does ReserveCalifornia have a waitlist for Dos Rios State Park?

No. ReserveCalifornia has no waitlist or notification feature. When a site at Dos Rios State Park is cancelled it simply returns to inventory at full price, first-come, first-served — whoever books it first gets it. That's exactly why an alert service exists.

Where do I book a campsite at Dos Rios State Park?

Dos Rios State Park is listed with California State Parks, but online booking may be limited — check the park's official listing for current reservation options. GetParkAlerts never holds or books sites; you always reserve directly.

Parks near Dos Rios State Park

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