Walk 570 m of hand-carved cave by candlelight, with the camera in your bag
Candle in hand, 250 carvings, no photos
Taya-no-Dokutsu, in the grounds of Josenji temple in Sakae Ward, is a Shingon ascetic-training cave cut by hand from the Kamakura period onward. It runs roughly 570 m on three vertical levels, with around 250 Buddhist bas-reliefs carved into the walls.
Why it's unique
This is not a natural cave. It is a hand-carved esoteric training cave, cut over centuries by monks, and the largest of its kind in the country that a visitor can walk through.
The visit is done the way it always was, by a single candle lit from the flame at the entrance, and photography is forbidden inside. That is why almost nothing of the interior circulates online and why it still feels like a discovery when you are in it.
Before you go
Bring a torch as well as the candle. The reliefs are effectively invisible by candlelight alone, and that is the single piece of advice that changes the visit. Photography is strictly forbidden inside, so do not arrive expecting a photo stop.
Ceilings are low and the passages are damp and cold all year; allow about 45 minutes. An English pamphlet is available at the counter, and the temple runs public zazen on Saturday afternoons in Japanese. English sources often call it near Kamakura, but it is in Yokohama's Sakae Ward and you reach it by bus from JR Ofuna. It closes in heavy rain and after earthquakes.