Wind through serpentine Boone Avenue on the Grand Avenue Tour.

Duration: 4½ hours
Walking Distance:  4 miles
Sells Out at:  78 visitors
Restroom Available? Yes, at 1.1 miles and 2.5 miles
Description: This physically demanding trip will give you an excellent idea of the size and complexity of the Mammoth Cave system. Learn of the natural and cultural history of the cave and how they are interwoven as your journey takes you through some of the most dramatic passages in this “mammoth” cave. Walk through gypsum lined passages, narrow canyons, underground hills, large rooms, and areas with dripstone formations.
Landmarks Seen: Carmichael Entrance; Cleaveland Avenue; Snowball Room; Boone Avenue; Thorpe's Pit; Mt. McKinley; Grand Canyon; Aerobridge Canyon; Hippodrome; Grand Central Station; Frozen Niagara; Frozen Niagara Tour Route
Elevation Change: 300 feet
Number of Stairs: 670
Steep Hill Climbs? Yes, both up and down! Grade changes abruptly more than 60 feet at several places between 2.5-mile point and exit
Restrictions: No children under age 6; food allowed only at Snowball Room lunch stop; general restrictions apply

Special Notice: The Frozen Niagara Tour route and New Entrance Tour route (except for the near 280 stairs at the entrance through the vertical shafts) are included on this tour. There are two restroom stops. Comfortable walking shoes are recommended for this tour.