Ontario Parks · Ontario

Oastler Lake Provincial Park

Ontario Parks · Ontario, Canada

Open on the map Drive there Reserve Official page Directions
Sites
148
Hookups
66 electric, 82 no hookups
Season
May 8 to October 13
Cost
Non-electrical $38.75–$46.50, electrical $43.75–$52.50 CAD per site per night plus HST
Restrooms
Yes
Showers
Yes
Dump station
Yes
Laundry
No
Pets
Yes
Elevation
676 ft
Dark sky
Bortle class 3
Nearest town
Seguin
Address
380 Oastler Park Drive, Seguin, ON P2A 2W8
Phone
705-378-2401
Activities
Biking, Boating, Canoeing, Fishing, Swimming

About

Oastler Lake Provincial Park is located just outside Parry Sound. It boasts a beautiful beach and is a great place to spend the day swimming or having a family picnic.

Boating and fishing are popular day use activities. Watercraft rentals, such as kayaks and stand-up paddle boards, are available at the park office, subject to availability. An off-leash beach area is a great place for those with dogs.

Oastler Lake offers premium waterfront campsites. There are 5 campgrounds that can accommodate equipment ranging from tents to large trailers. Campsites include parking for one vehicle with additional parking a short walk away. Beachside Campground has 24 electrical sites, including pull-through sites for larger trailers. Lakeview Campground offers 18 waterfront campsites. The Point Campground is radio- and generator-free and offers ten walk-in sites on Hemlock Peninsula. Campsites include parking for one vehicle 100 to 300 metres away. Riverside Campground has 18 large electrical sites along the Boyne River. Hardwood Hill Campground offers 24 electrical sites in a mixed deciduous forest near the pet exercise area.

Weather, month by month

MonthTypical highTypical lowColdest nightHottest dayYears with a night below 32°F
January25°11°-16°37°11 of 11
February27°14°-20°43°11 of 11
March35°20°2°50°11 of 11
April46°33°7°73°7 of 11
May60°44°33°78°0 of 11
June68°54°46°82°0 of 11
July75°63°55°89°0 of 11
August75°63°55°83°0 of 11
September68°56°48°80°0 of 11
October54°45°32°67°0 of 10
November40°33°9°61°9 of 10
December32°22°-9°55°10 of 10

Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.

Nearby campgrounds

All public campgrounds in Ontario · Every state and province · Facts read from the operator 2026-09-14. Confirm fees, rules and current status with the operator before you go.