To enter Kamakura from the east, north or west, people had to pass through narrow paths (Kiridoshi) named 'Kamakura Nanakuchi' (Kamakura's Seven Entrances), which had been dug through the mountain.
東・北・西のいずれから鎌倉に入るとしても「鎌倉七口」と呼ばれる、山を切り開いた狭い通路（切通し）を通らねばならなかった。