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Cave Gönen - Balikesir - Marmara |
Horizontal Cave Dursunbey - Balikesir - Marmara |
Cave Gönen - Balikesir - Marmara |
Horizontal Cave Kepsut - Balikesir - Marmara |
Cave Savastepe - Balikesir - Marmara |
Cave Erdek - Balikesir - Marmara |