Camp 312 is a backcountry campsite on Crab Lake within Kawartha Highlands Provincial Park, roughly 70 kilometres north of Peterborough, Ontario. It is accessible by canoe, typically via a short portage from Wolf Lake.

Reviewers generally regard site 312 as one of the better options on Crab Lake, often mentioned alongside neighbouring sites 311 and 313.

The lake itself is characterized by rocky shorelines and a distinctive star-like shape formed by bays jutting in multiple directions, which creates numerous rocky points well suited to canoe camping.

Because the lake is a closed system with no onward portages, Crab Lake — and its campsites including 312 — offers a self-contained wilderness experience.