6 Secret Spots In Kentucky's Mammoth Cave National Park That Most Tourists Miss

Hidden out of sight from the world of daylight, it's inevitable that the chambers of Mammoth Cave exude a sense of mystery. Mammoth Cave, however, is just one part of the impressive Kentucky national park with unique above-ground and underground adventures. In fact, Mammoth Cave National Park consists of nearly 53,000 acres, encompassing a swath of the lush Green River valley. Its terrain features a sweep of karst formations, rivers, bluffs, and hilltops blanketed in hardwood forest.

The Mammoth Cave itself is one of the namesake park's main draws, featuring sites like the "Frozen Niagara," a spectacular underground wonder of draped limestone. Only about 10 miles of Mammoth Cave are actually open for visitors to see, however, and you'll need to secure a spot with a guided tour to go in. If you only stick to one of these guided tours, you miss so much of what the park has to offer beyond the cave system. The park's surface is free to explore and offers lots of hiking trails, scenic overlooks, and even a whole other cave system you might miss if you focus only on the cave that lends its name. These are some of the unique, scenic spots you might otherwise have not discovered that could add a surprising variety to your next Mammoth Cave National Park itinerary.

Visitors to Mammoth Cave National Park might not realize that there's another cave you can see within the park, completely separate from Mammoth Cave. Great Onyx Cave is in the northeast part of the park, described by one previous visitor as "a nice departure from the busy Mammoth Cave." Lantern tours venture into this cave regularly, covering about a mile of spindly rock formations, including a stalagmite-filled chamber known as the "Macaroni Factory." To reach the cave entrance, you take a bus ride from the park's visitor center.

Cave tourists know that the Mammoth Cave has numerous waterways, snaking and dripping through its chambers. But you might not have known that these rivers come to the surface to form springs, sometimes called "blue holes." One of these is the Echo River Spring, which you can see on a loop trail that extends for just under 1 mile. Along the trail, you can see the spot where the Echo River emerges from the cave, with boardwalk sections, wildflowers, and river views on the way. The trailhead is at the Green River Ferry parking lot.

In the southern pocket of Mammoth Cave National Park is Sloan's Pond, where you might get to glimpse a turtle basking on a rock or a red-winged blackbird perched among reeds. A 0.4-mile boardwalk trail circles the pond, with informational panels about the marsh-dwelling wildlife and overlooks placed along the way. Previous travelers have described it as a "quiet" and "easy" walk perfect for beginners. There's also a picnic area by the pond. To reach it, you can drive five to 10 minutes from the park's visitor center.

Besides Mammoth Cave and Great Onyx Cave, there's another overlooked cave on the national park site: Sand Cave. This one, however, is closed off, and it was where cave explorer Floyd Collins was horrifically trapped inside for weeks before dying. You can still walk up to the sand-bottomed mouth of the cave, though, on a 0.3-mile trail. "Very shaded and serene. Not a lot of visitors when we walked it," wrote one previous visitor. The trailhead sits at the edge of the park, a 10-minute drive from Cave City, Kentucky's wildly overlooked cave capital.

The Green River is the artery that flows through the park's hilly forest, karst formations, and cave system. The park offers a few stellar lookouts over the river, but it's the Turnhole Bend Overlook that's a more hidden stop away from the park's busier core. While the Green River Bluff Overlook near the Mammoth Cave entrance is a more accessible stop for cave tourists, Turnhole Bend is further west, about a 10-minute drive from the visitor center. The lookout spot is reachable via the 0.5-mile Turnhole Bend Nature Trail, which has some steep sections.

For the true off-trail adventurer, Mammoth Cave National Park hides some pretty waterfalls in its backcountry, so long as you're willing to scout for them. Grotto Falls is one that stands out for its scenery. It's a ledge-type waterfall, and it's adjacent to a striking rock arch. Given that it's off-trail, Grotto Falls will be harder to find, but Kentucky Waterfalls gives its coordinates, which situate it on the north side of the park, off of the First Creek Trail.