Visitors enjoy the convenience of walkways and electric lighting. Cave tours last about 45 minutes. The cavern temperature is 55 degrees year-round. The tour covers about a quarter mile on walkways and stairs. There are a total of 440 steps, 208 down into the caverns and 232 up out of the caverns. Visitors descend a total of 160 vertical feet below the entrance.
Beneath the fertile rolling hills of the Meramec Valley, lies a complex of mineral formations and color as rare and unique as they are beautiful. These jewels of nature which took thousands of years to grow, are preserved in the spectacular sights of Meramec Caverns.