Lighthouse Loop

JUL
11
2026
Lighthouse Loop is a 2.3-mile open water swim in Lake Michigan starting from Red Arrow Park. The course loops past a lighthouse at the river mouth. A wetsuit and swim buoy are required for all participants.
Sat 11 Jul 2026

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Event Overview

The Lighthouse Loop is an open water swim event in Lake Michigan, near the mouth of the Menominee River.

Course and Details

The main swim covers 2.3 miles. It starts at Red Arrow Park in Marinette, Wisconsin. Swimmers head past the lighthouse at the mouth of the Menomonee River and loop back to the start at Red Arrow Park.

Participant Requirements

Swimmers must be 14 years or older to participate. A parent or guardian must sign an additional waiver for any participant under 18. All swimmers are required to wear a wetsuit. A doctor's written permission is required to swim without one and must be received by race officials at least 7 days in advance. Participants must also use a swim buoy during the event.

Additional Activity

A separate kids' swim called the Little Lighthouse is available for children 13 and under. It is a 100-yard swim that parallels the shore. Registration for this activity occurs on-site on the event day for a minimal fee. Visit the organization's website for the most recent information.

Lighthouse Loop
Little Lighthouse