Located in the town of Knife River in the United States, Knife River Marina Beach is a picturesque beach offering stunning views of Lake Superior. The beach is approximately 500 feet long and features light brown sand with a few scattered rocks. activities available at the beach include swimming, sunbathing, beachcombing, and fishing. The beach is equipped with amenities such as restrooms, picnic tables, and a playground for children. However, there are no lifeguards on duty, so swimming is at your own risk.