The one hour guided walking tour takes you 110 feet underground through seven rooms or levels. The largest room is 250 feet in length.

At the lowest level, which is 110 feet below the surface, visitors will view "Ole' Mist'ry River," the crystal clear flowing stream which is part of the vast groundwater system which underlies the surrounding region.

The caverns are electrically lighted and tours are conducted by a knowledgeable and competent guide/interpreter staff. During the summer months, the tours depart approximately every 20 minutes with the last tour departing one hour before close. A light jacket is recommended as the caverns temperature is a constant refreshing 54 degrees Fahrenheit. It is also suggested that comfortable shoes be worn for the tour.

Seneca Caverns is one of Ohio's largest underground caverns, and one of America's most fascinating geological wonders.