Japan is the land of amazing engineering, and I visited another amazing engineering site today... Tappi Undersea Station, somewhere between Aomori and Hakodate. I have always had a fantasy about living underground, or even at the bottom of the ocean, and this place is the closest I have ever seen to the realisation of my dream. A train station which is not only underground, but under the ocean as well. We stopped here for a couple of minutes. From the platform, dark tunnels lead forlornly into the gloom, milled by dwarves (perhaps). It is possible to get out and go on a tour of the tunnels, if you give some notice...