Site 453 is a canoe-in campsite on Shark Lake, located at the southern end of Kawartha Highlands Provincial Park in Ontario.

It sits close to the put-in point from the southern ponds, making it a convenient first stop for paddlers entering the lake from that direction. The site is bookable through Ontario Parks. Shark Lake is noted for its bass fishing and sandy beach campsites.

Access is typically made via the Coon Lake (Racoon Lake) entry point, with a portage through Sawmill Lake leading to the south end of Shark.

That final portage involves a short ascent over a rock face near the take-out, which can require some care when maneuvering a canoe.