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This tour enters through the natural entrance and covers two miles of cave passages, including Fat Man's Misery, several old mining areas, Mammoth Dome, and a variety of lengthy caverns. There is a fair amount of ducking, twisting, and stair climbing during the two-hour tour. Note that due to the geology of the site, most of the portion of the cave that you'll see on this tour, while often large and impressive, lacks the stalactites and stalagmites that many people expect to see in limestone caves. If you've only got time for one tour and want to see more "decorated" caves, you should opt for the Domes and Dripstones tour.
A one-mile (1.6-km) trail leads to and down into a massive sinkhole. A sinking river flows at the bottom. While the trail to the sinkhole is rated as easy, there are many stairs to descend and climb if one wants to explore the bottom.
A popular boat launch and picnic area on the Green River. The recreation area used to be a primitive campground, but no overnight camping is allowed.
A 9-mile (15-km) trail that follows the right of way of the Mammoth Cave Railroad which operated from 1886 to 1931. The trail connects the Mammoth Cave Hotel with Park City, KY.
A short trail leads to Sand Cave. In January 1925, Floyd Collins became trapped while exploring the cave. The attempts to rescue him drew national attention, and while unsuccessful, were credited with generating the interest to create a national park centered on Mammoth Cave.
A half-mile (800-m) loop trail that leads to a scenic overlook of the Green River.
The First Creek Trail crosses Houchins Ferry Rd. near the northern boundary of the park and can be accessed via this trailhead.