Camp 311 is a backcountry canoe-in campsite on Crab Lake within Kawartha Highlands Provincial Park, roughly 70 kilometres north of Peterborough, Ontario. Accessed via a short portage from Wolf Lake, it is widely regarded as one of the best sites on the lake.

Known informally as "the family site," Camp 311 features multiple tent pads, making it well suited for larger groups. A rocky point provides easy swimming access, and a second, more secluded swimming area lies a short walk to the north.

The site offers a notable view of a formation locals call Blueberry Hill, and while the sunset isn't directly visible, it can be watched as it reflects off the hill. Additional firewood can be found by climbing the rock hill behind the site.

The site also features a long point — a highlight noted by paddlers who have explored the lake by canoe.