This image shows a free standing rock structure carved from water and wind erosion. Its fanciful name is the Flower Pot.
The description on the back states:
Flower Pot Island National Park
Tobermory, Ontario, Canada
— As indicated by the description, the rock formation is the name of an island park located about 6.5 miles off shore from Tobermory, Ontario. It is part of Fathom Five National Marine Park, and has the only camping and hiking trails in the park.
This image likely dates from the 1950s.