Lake Dennison
Lake · Massachusetts
About this swimming hole
Lake Dennison Recreation Area in Winchendon is a DCR-managed park on the Birch Hill flood-control project with 150 campsites and a swimming beach. Mass.gov confirms a beach where you can swim, open late May to early September, 10 am-8 pm. Parking is $8 for MA residents and $30 for non-residents.
Good to know
| Water type | Lake |
|---|---|
| Best season | June-September |
| Fees | Parking $8 MA resident / $30 non-resident (May 23-Sep 7) |
| Reservations required | No |
| Hours | Beach: 10 a.m.-8 p.m., late May to early September |
| Parking | On-site lots; 219 Baldwinville State Rd, Winchendon |
| Amenities | restrooms, picnic tables, lifeguards, campground, hiking trails |
| County | Worcester County |
| Nearest town | Winchendon |
| Safety notes | Lifeguards seasonal |
Map
Nearby swimming holes
Frequently asked questions
Does Lake Dennison require reservations?
No reservations are required at Lake Dennison based on current information — but verify before you go.
Is there a fee to visit Lake Dennison?
Reported fee info: Parking $8 MA resident / $30 non-resident (May 23-Sep 7). Fees can change — confirm with the official link.
When is the best time to visit Lake Dennison?
The best season is typically June-September.
⚠️ Verify before you go. Conditions, fees, reservations, and access can change — confirm details with the official link before visiting. Last verified: September 2026