Crystal Cave Park
- Offers a forty-five minute interpretive tour. Includes dates and hours of operation, admission rates, and map directions to location in Kutztown.
- http://www.crystalcavepa.com/

Woodward Cave
- Includes description of guided tour, rates, hours, map and directions, souvenir store and campground. Located east of State College.
- http://www.woodwardcave.com

Indian Echo Caverns
- Offers 45-minute guided tour. Includes virtual tour, history, hours, fees, map directions, photos and contact information. Gift shop on premises. Located near Hershey Park.
- http://www.roadsideamerica.com/attract/PAHERecho.html

Coral Caverns
- Features fossilized coral reef. Includes photos, schedule, directions. Located 7 miles west of Bedford.
- http://coralcaverns.com/

Penn's Cave
- Offers one-hour tour by motorboat on an underground stream. Includes schedule and rates, special events, wildlife tours and contacts. Gift shop on premises. Located in Centre Hall.
- http://pennscave.com/

Lost River Caverns
- Offers guided tours. Includes history and geology of the cave, hours, directions and contact information. Gift shop, museum and picnic area on premises. Located in Hellertown.
- http://lostcave.com/

Laurel Caverns
- Guided tour lasts 55 minutes. Includes information about separate wild tour, hours, admission fees and contacts. Located east of Uniontown.
- http://laurelcaverns.com/

Lincoln Caverns
- Offers one-hour guided tour. Includes hours of operation, rates, group tours, directions and contact information. Campground, picnic area and nature trails on premises. Located 3 miles west of Huntingdon.
- http://www.lincolncaverns.com/