Natural swimming hole
Diamond Lake
Lake · Oregon
Community-reported spot. Details below are compiled from public sources and are reported to be accurate — always verify locally before visiting.
About this swimming hole
Diamond Lake is a natural lake beneath Mount Bailey with a swim beach, resorts, and legendary summer scenery. The shallow lake warms up nicely for swimming. It is the South Cascades' classic family lake, minutes from Crater Lake.
Good to know
| Water type | Lake |
|---|---|
| Water temperature | 60s-70s in summer |
| Depth | swim beach |
| Best season | June-September |
| Fees | $5-10 day use |
| Reservations required | No |
| Parking | resort and day-use lots |
| Amenities | restrooms, campground, boat launch, marina |
| County | Douglas County |
| Nearest town | Diamond Lake |
| Safety notes | no lifeguard; boat traffic |
Map
Nearby swimming holes
Frequently asked questions
Can you swim in Diamond Lake?
Yes — Diamond Lake is listed as a natural swimming spot in Oregon. Reported water temperature: 60s-70s in summer. Heads-up: no lifeguard; boat traffic. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.
Does Diamond Lake require reservations?
No reservations are required at Diamond Lake based on current information — but verify before you go.
Is there a fee to visit Diamond Lake?
Reported fee info: $5-10 day use. Fees can change — confirm with the official link.
When is the best time to visit Diamond Lake?
The best season is typically June-September.