The underground galleries in Amasra start from Kaleiçi in Zindan neighborhood and continue under the port direction in the settlements. The most important part of the gallery seen in the Tomaşkuyusu district is thought to belong to the Roman period. About 80m from the main entrance inside the castle. The length can be entered in the section.
It is said by some historians that these galleries belonging to the Roman period were inspired by the refugees in Cappadocia.