Jul 01, 2002 — Today is Canada Day, and that means the beginning of a busy holiday week on the St. Lawrence River. As Canadian and American boaters buzz across the river, U.S. Immigration is reminding people to check in when they cross the border. Winston Barrus, deputy director for the Immigration and Naturalization Service in the region, says boaters will notice some changes when they apply for their I-68 immigration form. Martha Foley reports.