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e25
    

A modern "adventure" with stale air, bad view, fear of being underground, awful noise and all sorts of obstacles...

In addition to which by the time you cycle to the other side you're completely deaf!

When you're balanced on a bicycle, you're lucky not to carry luggage-bags attached to the side of your bike

Entrance to the Akiyoshidai cave in Yamaguchi, the biggest cave in Asia.
This has been developed for tourists and stretches about a kilometre into the mountain



Approximately halfway into the cave there's an elevator to take anxious tourists quickly back up to the surface