experiences
Lion's Den Gorge (Bluffs, Beach and Stairs)
A 73-acre Lake Michigan preserve in Grafton: blufftop trails, a staircase to the beach, and free entry from sunrise to sunset.
Published July 22, 2026
There is a stretch of undeveloped bluff between Mequon and Port Washington where the land drops ninety feet straight to Lake Michigan, and almost none of it is open to the public. Lions Den Gorge is the exception. This 73-acre preserve just east of Grafton keeps a half mile of that blufftop open to anyone who wants to walk it, with a wooden staircase down to a stony beach at the far end and, on a clear day, a view all the way up the shoreline to the Port Washington water tower. It costs nothing to get in, and it is open from sunrise to sunset every day of the year.
What is Lion's Den Gorge?
Lion's Den Gorge is an Ozaukee County nature preserve on the Lake Michigan shore, named for the deep, wooded ravine, the gorge itself, that cuts down to the lake near the north end of the trails. Ozaukee County and the Ozaukee Washington Land Trust bought the land in 2002 to keep it from being built on, and a conservation easement means it stays undeveloped: gravel trails, boardwalks, a few bridges, and not much else. The preserve sits next to a 44-acre federal waterfowl area, which is part of why the birding here is better than the size of the place suggests. It is one of the last undeveloped stretches of Lake Michigan bluff between Milwaukee and Port Washington, and standing at the edge you understand quickly what was nearly lost.
Getting there and parking
The entrance and parking lot are at 811 High Bluff Drive, off Lakefield Road on the east side of Grafton, about twenty minutes north of Milwaukee. The lot is paved, there is an informational kiosk at the trailhead, and clean restrooms and a covered picnic area sit near the entrance. Parking and entry are both free, with no sticker or pass to buy, which is rare for a Lake Michigan access point this good. The lot fills on summer weekends and on the first clear day after a stretch of grey ones, so an early start is the difference between pulling straight in and circling. There is no public transport out here; you arrive by car or by bike along the county roads.
The trails: which one to take
There are two ways to reach the lake, and the right one depends on who is walking. From the parking lot a short boardwalk leads out to the first bluff view, where the trail splits. The Bluff Trail follows the edge south, roughly half a mile of near-continuous Lake Michigan views along the top of the ninety-foot bluffs, and it is the one worth walking if you can. The Lion's Den Trail is the straighter, flatter route and the accessible one; it gets you to the boardwalk and the overlook without the uneven edge-of-bluff footing. The full loop, out along the bluff, down to the beach, and back up through the gorge, is about two miles and takes an hour at an unhurried pace. Add the Cedar Loop through the ravine on the way back and you have a genuinely varied walk out of a small park. The first overlook, reached in a few minutes from the lot, is where most casual visitors stop, and on a busy day it is worth walking on past it to the quieter stretches of the bluff where the crowd thins out.
The footing is trail-grade, not sidewalk: exposed roots, gravel, and a few root-stepped climbs. Nothing technical, but not a stroller surface once you leave the boardwalk. The trails are well signed at the junctions, so it is hard to get genuinely lost, but the network rewards wandering: side paths run out to the ravine edge and back into the cedars, and an hour here turns into two without much effort.
The staircase and the beach
At the north end of the Bluff Trail, a long wooden staircase drops through the trees to the beach. It is a real descent, and the climb back up is the most work the walk asks of you, so pace it. The beach at the bottom is stone rather than sand, and the water is Lake Michigan cold, clear and startlingly blue on a calm day but rarely warm. Most people come down to skim stones, look back up at the bluffs from below, and turn around. There is often evidence of recent bluff collapse along the beach, fresh clay and toppled trees at the base, which is a good reminder to keep back from the edge up top and not to sit directly beneath the overhangs down below. The bluffs here are actively eroding, which is exactly why the land was protected and why the fences and setbacks at the top are worth respecting. In summer the beach is a fine spot to sit with the bluffs rising behind you; in a winter storm it is one of the more dramatic places on this coast, with the wind coming straight off the lake.
Birds and the salmon stream
The preserve punches above its weight for wildlife because of what sits next to it: a 44-acre federal waterfowl production area on its inland side. A small salmon-spawning stream runs through the property to the lake, and in autumn you can sometimes see fish working up it. Monarchs pass through the meadow and cedar edges in late summer, and the cedar forest along the Cedar Loop holds songbirds that the open bluff does not. Early morning is the productive window, before the day-trippers arrive and while the birds are still active.
When to go, and what to watch for
Lion's Den is open year-round, and each season changes the walk. Summer is busiest and best for the beach; come early for parking. Autumn is the quiet favourite, with colour in the ravine and cooler air for the staircase. Winter is genuinely worth it for the ice on the bluffs and the empty trails, but the Bluff Trail and the wooden stairs turn slick when they freeze, so grippy boots or spikes are not optional then. Summer brings mosquitoes to the wooded stretches, so repellent earns its place in the bag from June on. Whatever the season, wear real shoes for the stairs and the beach stones, and give yourself daylight to get back; the sunset-to-sunrise hours are enforced.
Pairing Lion's Den with the rest of Grafton
Lions Den is an easy half-day, which leaves room for the rest of the town. It pairs naturally with a walk at Lime Kiln Park along the Milwaukee River and the other riverfront parks and the Interurban Trail on the way back inland.
Families making a day of it will find the gorge works well alongside the pool and the playgrounds, a combination covered in the guide to Grafton with young children.
And if the gorge is the anchor of your trip, the rest of a day out in Grafton is fifteen minutes back inland: the river, downtown, and the blues history at Paramount Plaza.
