Excavators working in a quarry found a small opening that led down to a cave that had a total length of about one and a half miles [2.5 km] and contained a chamber with a lake.
Strādnieki, kas strādāja kādā karjerā, atsedza nelielu atveri, kas veda dziļāk alā, kuras kopējais garums ir apmēram divarpus kilometru un kurā atrodas arī pazemes ezers.