Cedar Sink Trail

Cedar Sink Trail is a 1.6-mile lollipop loop from Cedar Sink Trailhead on Mammoth Cave's south side. The wooded approach rolls along a broad dirt path before stairs carry you into the sink; a lower route circles its bowl past observation decks and a footbridge, then rejoins the approach back to the lot. The payoff is an unusual change in scale: a steep-walled limestone hollow hidden in the forest, where an underground stream briefly appears above ground. If you want to see the cave landscape without taking a cave tour, this is a strong choice.

Allow about an hour to 90 minutes. The distance looks short, but stairs slow the walk and the sink deserves a pause. The full figure is for the complete walk back to the trailhead. One-mile figures circulate for this route, sometimes called a round trip and sometimes a loop; the mapped visitor route is closer to 1.6 miles once the shared approach and lower circuit are counted together.

From the lot, the rolling dirt track goes downhill for roughly three-quarters of a mile before you reach the sink. It's about six feet wide, with small rises and dips rather than one straight drop. Once at the sink, keep following the lower trail around the bowl instead of treating the first stairway as the endpoint. The mapped circuit uses several stair flights and a short footbridge before it climbs back to the shared approach. You do not need to add another trail or reach a different cave to complete Cedar Sink Trail.

There are 295 stairs in all. You'll descend into the sink and climb back out on steps; the floor itself is fairly flat and stable, but the stair sections are the demanding part. This is not a flat stroll, and the route is not accessible for everyone. If repeated stairs or limited mobility would make the descent difficult, choose another walk rather than expecting a level way through the sink. The rolling approach is easier underfoot than the basin circuit, but the loop's stairs are part of the experience, not a short optional spur.

Cedar Sink is a karst window, probably formed when limestone above a cavern opening collapsed and exposed a short stretch of an underground stream. The water crosses the sink floor, then disappears beneath a rocky bluff. The lower observation deck gives you the clearest view of that brief surface run; frame the channel with the steep wall so the scale of the sink is clear. Water levels vary, and the channel can be dry, so the geological shape is the reliable payoff rather than a guarantee of flowing water.

Start at the Cedar Sink Trailhead parking area. It can fill depending on park visitation, and the trail begins beside the lot. No reservation or separate activity fee is required, though the park entrance fee may apply. Dogs are allowed on a leash no longer than six feet. The stairs are the key access limitation: there is no level route through the sink on this mapped loop.