Thousand Islands National Park Of Canada

Manager: Parks Canada Agency
Designation: National Park
Size: 5,842 acres
Region: Ontario

Mushroom harvest rules

Harvest prohibited

Canadian National Parks (Parks Canada)

Removing flora, which the regulations define to include fungi, from a national park is prohibited except under a permit.

Section 10 of the National Parks General Regulations says no person shall remove, deface, damage or destroy any flora or natural objects in a park, other than under a permit issued under the regulations (for example for scientific or park management purposes) or under the National Parks of Canada Land Use Planning Regulations. The regulations define flora as any plant matter, living or dead, including fungi and moulds. Confirm with the park before picking anything.

Official source: National Parks General Regulations (SOR/78-213), Justice Laws Website

Last verified: November 11, 2026

Rules change. Confirm with the land manager before you pick.

See the foraging laws for Ontario.