The Interstate 5 freeway extends from the U.S./Mexico border at San Diego, northward to Canada, and terminates in Blaine at the city's northern border. The country's only pedestrian crosswalk to cross an Interstate freeway exists in Peace Arch State Park, the Washington portion of the binational Peace Arch Park. The Canadian side of the park, designated as Peace Arch Provincial Park, is in Douglas, the Canadian port-of-entry and part of the city of Surrey, British Columbia. The Peace Arch monument, located in the Park, symbolizes lasting peace and amity between the U.S. and Canada. One innovative feature that has never been abrogated even during the days since 9/11 is that people entering the Park from either side may have the unique experience of strolling to the opposite park's boundary amid flowers, ponds, and works of art, without having to go through Immigration, thus truly making the Park a place of bi-national mingling. Frequently, wedding ceremonies are performed in the Park.