Natural swimming hole
Mill City Park
River · New Hampshire
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
New England's first whitewater park sits on the Winnipesaukee River in downtown Franklin, with engineered waves for kayakers and river surfers. Between features, the river is swimmable, and the park's amphitheater and riverfront make fine spectator territory. The full buildout adds acres of trails and conservation land.
Good to know
| Water type | River |
|---|---|
| Best season | June-September |
| Fees | Free |
| Reservations required | No |
| Hours | Open year-round |
| Parking | Downtown Franklin parking |
| Amenities | amphitheater, riverfront park |
| County | Merrimack County |
| Nearest town | Franklin |
| Safety notes | Whitewater features; no lifeguard |
Map
Nearby swimming holes
Frequently asked questions
Can you swim in Mill City Park?
Yes — Mill City Park is listed as a natural swimming spot in New Hampshire. Heads-up: Whitewater features; no lifeguard. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.
Does Mill City Park require reservations?
No reservations are required at Mill City Park based on current information — but verify before you go.
Is there a fee to visit Mill City Park?
Reported fee info: Free. Fees can change — confirm with the official link.
When is the best time to visit Mill City Park?
The best season is typically June-September.