Luray Caverns - Virginia
101 Cave Hill Rd, Luray, VA 22835
Tickets were $27 per adult. Was around a one hour tour underground. It was not that cold as I expected fortunately. Fantastic experience. Highly recommend. Great tour of the largest limestone cavern in the east. 4th of July weekend was crowded but the staff was excellent in handling the large volumes of people.
There are attractions for entire family, antique car museum, toy and doll museum, garden maze, rope adventure park ... . Worth the trip.