Big Lake

Lake · Alaska

ℹ️ 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

Big Lake's state recreation sites have swim beaches on the Mat-Su Valley's biggest recreational lake. The lake warms in the summer sun and draws boaters, swimmers, and campers. It is the Valley's summer headquarters.

Good to know

Water typeLake
Depthlarge lake; swim beaches
Best seasonJune-August
Fees$5 day use (typical Alaska state park fee)
Reservations requiredNo
Hourssunrise-sunset
Parkingpark lots
Amenitiesrestrooms, campground, boat launch
CountyMatanuska-Susitna Borough
Nearest townBig Lake
Safety notesno lifeguard; cold water; heavy boat traffic — swim near shore

Map

Nearby swimming holes

Frequently asked questions

Does Big Lake require reservations?

No reservations are required at Big Lake based on current information — but verify before you go.

Is there a fee to visit Big Lake?

Reported fee info: $5 day use (typical Alaska state park fee). Fees can change — confirm with the official link.

When is the best time to visit Big Lake?

The best season is typically June-August.

⚠️ Verify before you go. Conditions, fees, reservations, and access can change — confirm details with the official link before visiting. Last verified: September 2026