The One-Site Campground You Can Only Reach by Boat
Most campgrounds in the national park system have dozens of sites. Hay Bay Campground has exactly one. That single tent site sits on the south shore of Isle Royale National Park, accessible only by canoe, kayak, or private boat - and if you make it there, you will have earned the solitude that comes with it. The dock depth runs 3 to 7 feet under normal conditions, the stay limit is 3 nights from June 1 through Labor Day, and no, there is no reservation system. First-come, first-served means exactly what it says. For a complete visitor guide to planning your Isle Royale trip, start there.
For more, see complete visitor guide, all campgrounds, hiking trails, lodging and accommodations, Campsites at Birch Island Campground (2026 Guide) (2026 guide), Campsites at Chippewa Harbor Campground (2026 Guide), Campsites at Duncan Bay Campground (2026 Guide) (2026 guide), Campsites at East Chickenbone Campground (2026 Guide), Campsites at Feldtmann Lake Campground (2026 Guide), and Campsites at Grace Island Campground (2026 Guide) (2026 guide).Getting to Hay Bay Campground
Access by Water Only
Hay Bay Campground does not have a trail leading to it. There is no ferry stop here. The only way in is your own boat - canoe, kayak, or a private watercraft you brought across Lake Superior. Isle Royale sits about 50 miles from the Michigan mainland, so getting your boat to the island requires either a charter service or launching from a vessel that can carry your craft.
The dock at Hay Bay has a depth of 3 to 7 feet under normal water conditions. That range matters because Lake Superior levels fluctuate seasonally. If you are arriving late in the season after a dry summer, expect the shallower end of that range. Kayaks and canoes have no trouble here. Larger private boats should approach slowly and check depth before tying off.
Rangers will tell you that south shore anchorages tend to have less wind exposure than the north shore, but Lake Superior weather changes fast. What looks like a calm morning can turn into 20-knot gusts by noon. If you are paddling in, plan your crossing for early morning when winds are typically lightest.
Navigating to Hay Bay
Hay Bay sits on the south shore of Isle Royale, roughly midway along the island's length. The bay itself offers some protection from prevailing winds, but you still need to read the weather before committing to the crossing from the mainland. Most visitors coming by private boat launch from Houghton, Michigan - the park's headquarters address is 800 E. Lakeshore Drive in Houghton, if you need a starting point for navigation planning.
Cell service drops out well before you leave the Michigan shoreline. Download your route maps and waypoints before departure. The park service recommends carrying paper charts as a backup - and anyone who has spent time on Lake Superior understands why.
What to Expect at the Campground
The Single Site
One tent site. That is the entire campground. There are no electric hookups, no RV pads, no group sites. Just a single tent-only spot for six people or fewer. As of 2026, small-party camping costs nothing - the overnight permit is free. You do need that permit, though. Download it ahead of time or stop at a ranger station before heading out.
The camping fee structure is straightforward: $0 for a small party of six or less. No hidden charges, no entrance fee on top of it. Isle Royale does not charge entrance fees like some national parks. You just need the free permit and a way to get there.
Facilities and What to Bring
This is not a campground with running water, flush toilets, or a camp store. You carry in everything you need and carry out everything you brought. That includes all food waste, packaging, and trash. The park has no garbage service at Hay Bay. Pack it in, pack it out - no exceptions.
For water, you will need to treat lake water. Isle Royale's water is generally clean, but giardia exists in backcountry areas across the park. Boil, filter, or chemically treat every drop you drink. The National Park Service recommends bringing a reliable water filter as your primary method.
Rangers emphasize that the biggest mistake first-time visitors make is underestimating how much gear they need to carry and how little they can resupply once on the island. Plan every meal. Bring stove fuel - campfires are often restricted during dry periods. Bring a first aid kit that accounts for the fact that the nearest medical help could be hours away by boat.
New Food Storage Guidelines
An active alert is in effect for Hay Bay Campground and all east-end campgrounds on Isle Royale. Wolves have accessed human food and garbage in and around Rock Harbor, leading to updated food storage guidelines designed to protect both visitors and wildlife.
The specifics of the new guidelines center on keeping all food, garbage, and scented items secured in bear-proof containers or properly hung at least 10 feet off the ground and 4 feet from any vertical support. The park service has become stricter about enforcement in response to the wolf incidents. Store your food properly - not only is it the law, but a fed wolf is a dead wolf, and Isle Royale's wolf population is one of the most studied predator populations on earth.
Returning visitors to Isle Royale will notice the difference. What used to be casual recommendations are now firm requirements. If you show up without a proper food storage system, rangers may require you to leave.
Practical Takeaways
- Reserve nothing. Hay Bay Campground operates on a first-come, first-served basis with zero advance reservations. Show up, claim the site, fill out your free permit.
- Stay limit is firm. Three nights maximum from June 1 through Labor Day. The park closes for the season from November 1 through April 15 annually; the campground operates within that window.
- One site, six people max. The single tent site accommodates six people or fewer. Larger groups need to look at other campgrounds on the island.
- Bring your own boat. Canoe, kayak, or private boat only. No trail access, no ferry service.
- Treat all water. Filter, boil, or chemically treat Lake Superior water before drinking. Giardia does not care how remote you are.
- Follow the new food storage rules. Wolves have learned that human camps mean food. Secure everything. The park service is actively enforcing this.
- Contact the park for current conditions. Phone: 906-482-0984. Email: isro_parkinfo@nps.gov. Check the all campgrounds page for updates before you leave.
Final Thoughts
Hay Bay Campground is not for everyone. It takes planning, self-sufficiency, and a boat to reach. You get one tent site, a dock, and miles of Lake Superior shoreline. No crowds, no generators, no camp store. Just you, the island, and the wolves that have been here longer than any of us.
If that sounds like your version of a good trip, you will not find a quieter spot on Isle Royale. Pack your gear, check the weather, and remember that the permit is free but the solitude comes with a requirement: you carry everything in, you carry everything out. That includes your food. Keep it secure. The wolves are watching.