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Ayvaini Mağarası (Ayvaini Cave) is named after nearby village Ayva. It is a through cave which is generally entered through its upper entrance called Doğanalanı. Here the cave starts with a 17 m drop which must be climbed, the rest of the cave is almost horizontal. If the drop is to steep you may try the other entrance called Ayvaköy.
This cave is very popular but it is not developed. Bring appropriate clothes and shoes, helmet and lamp. Rubber boots are also advisable, as this cave is partly water filled. The cave offers numerous speleothems, including rimstone pools and calcite crystals. Be careful where you walk and do not destroy the formations.