Stash container is a red cylinder approximately 10.5” x
6”.
Stash is located on Power Island. Once owned by the Henry Ford
family, this island is now a nature preserve.
A few rustic camping sites are available on nearby Bassett
Island, which is connected to Power Island by an isthmus. Camping
reservations may be needed.
The location description below was found here..
Power Island Bowers Harbor, West Grand Traverse Bay, Traverse
City • (231) 922-4818 Formerly known as Marion Island but
recently renamed for philanthropist Eugene Power of Ann Arbor, this
is a 205-acre island nature preserve in West Grand Traverse Bay
just off Bower's Harbor. This island is one of the last undeveloped
Great Lakes islands in close proximity to an urban area. It is
filled with a beautiful stand of northern hardwoods, including
beech, sugar maple, basswood and red oak, as well as more than 250
plant species. Wildlife includes red fox and bobcat who prey on
such small mammals as the meadow vole, woodland deer mouse and
short-tailed shrew. Bird-watchers will likely see the red-eyed
vireo, American goldfinch, veery and bank and tree swallow.
Approximately 11 miles of hiking trails weave through the island's
interior. Due to Power Island's proximity to Traverse City, it is a
popular boating and picnicking destination.