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Plymouth Park: how hard is it to reserve?
John Day Lock and Dam, Lake Umatilla · US Army Corps of Engineers · Plymouth, WA
As of Oct 10, 2026, 97% of Friday and Saturday site-nights at Plymouth Park over the next 90 days are already reserved, compared with 28% of weeknights. Weekends are much harder than weekdays here — shifting a trip to Sunday–Thursday is the easiest way to get a site. In the next 30 days, 5 of 30 dates have at least one open site (84 open site-nights in total; 84 over 90 days).
Upcoming weekends
| Weekend (Fri–Sat) | Booked | Open sites Fri | Open sites Sat |
|---|---|---|---|
| Oct 16, 2026 | n/a | 0 | 0 |
| Oct 23, 2026 | n/a | 0 | 0 |
| Oct 30, 2026 | n/a | 0 | 0 |
| Nov 6, 2026 | n/a | 0 | 0 |
| Nov 13, 2026 | n/a | 0 | 0 |
| Nov 20, 2026 | n/a | 0 | 0 |
Snapshot history
| Snapshot date | Score | Weekends booked | Weeknights booked | Open dates 30d |
|---|---|---|---|---|
| Oct 10, 2026 | 93 | 97% | 28% | 5 |
About Plymouth Park
- 31 campsites (31 listed in availability data)
- $22–$50 per night
- Recreation.gov rating 4.2/5 from 549 reviews
- Equipment: Tent, RV, Trailer
- Activities: Swimming Site, Wildlife Viewing, Fishing, Camping, Boating, Birding, Day Use Area, Kayaking, Tubing, Water Access
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.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.The park is situated in a high desert environment on an island on the Columbia River. The island…
Description excerpt from Recreation.gov.
Check live availability and book on Recreation.gov →
Other campgrounds in John Day Lock and Dam, Lake Umatilla
| Campground | Difficulty | Weekends booked | Open dates (30d) |
|---|---|---|---|
| Lepage Park John Day Lock and Dam, Lake Umatilla | Not measured yet | n/a | n/a |
Nearby campgrounds
| Campground | State | Difficulty | Weekends booked | Open dates (30d) |
|---|---|---|---|---|
| Hood Park Lake Wallula | WA | Not measured yet | n/a | n/a |
| Charbonneau Park and Campground Lake Sacajawea | WA | Not measured yet | n/a | n/a |
| Fishhook Park Lake Sacajawea | WA | Not measured yet | n/a | n/a |
| Bull Prairie Campground (Or) Umatilla National Forest | OR | Not measured yet | n/a | n/a |
| Big Pines Yakima River Canyon | WA | Not measured yet | n/a | n/a |
| Takhlakh Lake Campground Gifford Pinchot National Forest | WA | Not measured yet | n/a | n/a |