| Location: It lies on the right bank of the Ergene Creek. The cave; which is located right above the former Kavacik mills; can be reached from the Kavacik Village at 5th km of the Saray-Vize road by a 15-minute walk. To 1500 m southwest lie the Horatas and Kücük Kalasli Caves. |
| Geography and Environment: The vicinity of the Koca Cave consists of the Paleozoic milotonic gneisses underlying the Eocene aged Kirklareli limestones; Oligocene arenaceous-argillaceous-chalky limestones and Plio-Quarternary sand and pebble deposits. It has two entrances; which have an altitude difference of 8.5 m It is dry in all seasons as it halted its development. |
| Destruction Details: |
