Because of sensitive wildlife, dogs are not allowed at this preserve. Also, a central portion of the boardwalk trail is closed each year from April 15 – July 15 in an effort to avoid disturbance of several species of birds as they nest in this critical habitat. Access during this closure remains available from both the M-22 and St. Pierre road parking lots.
Arcadia Marsh Preserve, located just south of Arcadia, offers visitors access to a Great Lakes Coastal Marsh, a rare and declining natural community found only in Great Lakes coastal areas. It is estimated that over 80% of all original Great Lakes marshes have been destroyed. These marshes are some of the most productive ecosystems in the world, and Arcadia Marsh is one of only 15 or so remaining coastal marshes along Lake Michigan’s Lower Peninsula shoreline.
Complete the nearby Adventure Lab and then use Certitude to obtain coordinates to this cache. You are looking for an ammo box.
You can validate your puzzle solution with certitude.