Drayton Harbor is a shallow bay just south of the Canadian border. The City of Blaine is located on its northeast and southwest sides such that the small city has two parts separated by the bay.
https://github.com/davepinch/pinchy.cc/blob/master/content/sites/washingtonlandscape.blogspot.com/2018/11/ice-age-boulders-in-drayton-harbor.md