Openings · last 7 days
28
Booking reality
Campsite Sniper detected 28 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-233587
When Plymouth Park reopens
Plymouth Park's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
45
Openings · last 90 days
47
Only 47 openings in the last 90 days: not enough recent activity for a reliable pattern. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
02 · Availability Outlook · Sep 18, 2026 – Mar 19, 2027 · of 31 monitored sites
Of the 994 tracked site-nights (Sep 18, 2026 – Mar 19, 2027): 449 open for online reservation · 334 reserved · 27 on sites not offered for online reservation (first-come, first-served or administrative) · 27 closed · 157 unavailable (cause unspecified).
Where the open windows are
54.8% of tracked site-nights are not currently open for online reservation. 449 of 994 remain open; here is where they are.
Load status
Sep 18, 2026 – Mar 19, 2027Not open online54.8%
Open site-nights449 / 994
Reserved (of online inventory)334 / 783
Weekday openings299
Weekend openings150
Of the open site-nights on mapped sites, 299 fall on weekdays and 150 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Mar 2027November shows no online availability. 0 of 30 tracked site-nights are open there — 30 unavailable.
Holiday windows
Sites open per night · of 29 sites| Window | Night | Sites open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open | |
| Thanksgiving | THU Nov 26 | 0 | None open |
| FRI Nov 27 | 0 | None open | |
| SAT Nov 28 | 0 | None open | |
| Christmas | THU Dec 24 | 0 | None open |
| FRI Dec 25 | 0 | None open | |
| New Year | THU Dec 31 | 0 | None open |
| FRI Jan 1 | 0 | None open |
Labor Day: no online availability on any tracked night. Thanksgiving: no online availability on any tracked night. Christmas: no online availability on any tracked night. New Year: no online availability on any tracked night.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| 28 | 25 |
| Paradise | 25 |
| 08 | 23 |
| 02 | 22 |
| 05 | 21 |
The 5 sites with the most open site-nights in the current snapshot. Pair a bookable date with a free alert to cover everything else.
Next windows
As of Sep 18, 2026 snapshotNext open dateSat · Sep 19
Next open weekendSat · Sep 19
November0 of 30 · unavailable
The next bookable night is Sep 19; the first open weekend starts Sep 19. Campsite Sniper can watch later dates for you.
Stays and site detail
449 open site-nights across 29 sites at Plymouth Park, from the same hourly snapshot as everything above.
Multi-night stays. 75 2-night, 59 3-night, 18 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 19 at site 23.
RV length. Longest recorded site here is 55 ft. 28 sites take 25 ft, 28 sites take 35 ft, 27 sites take 40 ft. 1 site of 29 has no recorded maximum and is not counted.
All 29 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 28 | 44 ft | Yes | 25 | 25 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +13 more |
| Paradise | Not recorded | None | 25 | 25 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +13 more |
| 08 | 42 ft | Yes | 23 | 10 nights | Sep 19, Sep 21, Sep 22, Sep 23, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +11 more |
| 02 | 48 ft | Yes | 22 | 20 nights | Sep 22, Sep 23, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +10 more |
| 05 | 43 ft | Yes | 21 | 20 nights | Sep 19, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +9 more |
| 07 | 41 ft | Yes | 20 | 14 nights | Sep 19, Sep 21, Sep 22, Sep 23, Sep 28, Sep 29, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 +8 more |
| 25 | 35 ft | Yes | 20 | 12 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +8 more |
| 29 | 45 ft | Yes | 18 | 10 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +6 more |
| 04 | 48 ft | Yes | 17 | 7 nights | Sep 21, Sep 22, Sep 23, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 8, Oct 9 +5 more |
| 06 | 46 ft | Yes | 17 | 11 nights | Sep 20, Sep 22, Sep 23, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9 +5 more |
| 12 | 47 ft | Yes | 17 | 9 nights | Sep 21, Sep 22, Sep 24, Sep 25, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 +5 more |
| 26 | 40 ft | Yes | 17 | 10 nights | Sep 19, Sep 21, Sep 23, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 +5 more |
| 14 | 42 ft | Yes | 16 | 5 nights | Sep 22, Sep 23, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8, Oct 10 +4 more |
| 31 | 45 ft | Yes | 16 | 11 nights | Sep 23, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 +4 more |
| 15 | 45 ft | Yes | 15 | 4 nights | Sep 21, Sep 22, Sep 24, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 11 +3 more |
| 21 | 44 ft | Yes | 15 | 5 nights | Sep 20, Sep 24, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 5, Oct 6, Oct 7, Oct 8, Oct 11 +3 more |
| 10 | 44 ft | Yes | 14 | 7 nights | Sep 27, Sep 28, Sep 29, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 11, Oct 12 +2 more |
| 23 | 54 ft | Yes | 13 | 5 nights | Sep 19, Sep 20, Sep 27, Sep 28, Sep 29, Sep 30, Oct 5, Oct 6, Oct 10, Oct 11, Oct 12, Oct 13 +1 more |
| 03 | 49 ft | Yes | 12 | 6 nights | Sep 21, Sep 28, Sep 29, Oct 1, Oct 3, Oct 4, Oct 9, Oct 10, Oct 11, Oct 12, Oct 13, Oct 14 |
| 19 | 55 ft | Yes | 12 | 4 nights | Sep 22, Sep 24, Sep 26, Sep 27, Sep 30, Oct 5, Oct 6, Oct 7, Oct 11, Oct 12, Oct 13, Oct 14 |
| 22 | 43 ft | Yes | 12 | 8 nights | Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 11, Oct 12, Oct 13, Oct 14 |
| 30 | 42 ft | Yes | 12 | 5 nights | Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 6, Oct 7, Oct 8, Oct 11, Oct 12, Oct 13, Oct 14 |
| 32 | 45 ft | Yes | 12 | 5 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5 |
| 11 | 42 ft | Yes | 11 | 6 nights | Sep 20, Sep 25, Sep 27, Sep 28, Sep 29, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 |
| 13 | 44 ft | Yes | 10 | 4 nights | Sep 20, Sep 24, Sep 25, Sep 26, Sep 27, Oct 4, Oct 5, Oct 6, Oct 7, Oct 14 |
| 18 | 46 ft | Yes | 10 | 5 nights | Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 5, Oct 6, Oct 14 |
| 27 | 45 ft | Yes | 10 | 9 nights | Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 11 |
| 16 | 46 ft | Yes | 9 | 4 nights | Sep 20, Sep 29, Oct 4, Oct 5, Oct 6, Oct 7, Oct 11, Oct 12, Oct 14 |
| 17 | 43 ft | Yes | 8 | 4 nights | Oct 3, Oct 4, Oct 5, Oct 6, Oct 9, Oct 12, Oct 13, Oct 14 |
About Plymouth Park
Overview
Plymouth Campground is located by the small town of Plymouth, Washington. The day use area and boat launch are on a small island on Lake Umatilla on the Columbia River.
Popular activities in the area include fishing, swimming, boating, water skiing and hunting.
Recreation
Visitors enjoy boating, water sports and swimming in the river.
Anglers fish for Chinook, steelhead, walleye, sturgeon, and shad. The boat ramp is located at the day use area for convenient river access.
Facilities
The campground offers 32 sites with electric hookups. Amenities include flush and pit toilets, showers, drinking water, a dump station and playground.
The day use area has a swim beach, boat ramp, flush toliets, vault toliet and courtesy dock.
Natural Features
The park is situated in a high desert environment on an island on the Columbia River. The island is covered with tall sage and Russian Olive trees, but shade is limited.
Wildlife is abundant in the area, and mule deer, waterfowl and raptors are commonly seen.
Nearby Attractions
McNary Dam and Visitor Center and Lake Wallula are two miles upstream from the campground. The lake offers additional opportunities for boating, swimming and fishing.
31 monitored sitesRVs up to 55 ft28 with hookups29 shadedWaterfrontRiverfrontPets OKFire pitsMax party 60
Getting there
From Kennewick, Washington take US-395 South or 23 Miles to Exit 131. Merge onto State Route 14 West and continue for 1 mile. Turn south onto Plymouth Road and continue for 1 mile. Follow the curve to Christie Road. The campground is the first left and the day use area is the second left.
Christy Rd, Plymouth, WA 99346541-739-1135
BirdingBoatingCampingDay Use AreaFishingKayakingStar GazingSwimming SiteTubingWater AccessWildlife Viewing
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-233587 · facility + sites
Photo gallery
Roll CS-233587 · Plymouth Park · Plymouth WA12 frames · facility + sites
FAQ
How do I get a reservation at Plymouth Park?
Reservations for Plymouth Park are made through Recreation.gov. 449 of 994 tracked site-nights are currently open (45.2%). Campsite Sniper has also detected 47 site openings here in the last 90 days, so further dates may appear. Pick a site on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
Does Campsite Sniper book this campground for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 17:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
How often do new openings appear at Plymouth Park?
Campsite Sniper detected 28 site-date openings at Plymouth Park in the last 7 days, 45 over 30 days and 47 over the last 90.
Can I get a multi-night stay at Plymouth Park?
59 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 20 at site 28. Confirm and book on Recreation.gov.
Which sites at Plymouth Park fit a 35-foot RV?
28 of the 29 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 55 ft. 28 of those 29 sites have a recorded maximum length and 1 does not; it is not counted as fitting.
Which month has the most availability at Plymouth Park?
October 2026, with 284 open site-nights in the current snapshot of 452.
When is the next open date at Plymouth Park?
As of the Sep 18, 2026 snapshot: the next open date is Sat, Sep 19 and the next open weekend starts Sat, Sep 19. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
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