The Humber makes an almost 90° turn inside Raymore Park and as the current slows down on the inside of the curve, sand is gently deposited on the western bank. When the river level is high, the sand is flushed downstream towards the lake. The sand comes from the Oak Ridges Moraine where it was dumped by glaciers that melted over 12,000 years ago.

This is the beach that was used by children from the subdivision destroyed by Hurricane Hazel in October 1954. The beach is a dynamic thing; some years it isn’t much at all; sometimes expanding and sometimes shrinking but the sand will continue to be be deposited for the next several thousand years until there’s none left upstream.

Read more about the beach here and about what washes ashore here.