In 1987, the Simferopol speleology team discovered a cave with a complex system of halls and galleries between Bin Bash-Koba (Thousand Heads) and Suuk-Koba (Cold).[2] The new cave, that lay at the altitude of 920 metres (3,020 ft) above sea level, was called Marble (initially, also the name "Afghan" was used), due to the fact it that was formed by marble limestone.[2] In 1988, the center of speleology tourism Onyx-tour established sightseeing tours, concrete paths were laid, and lighting.