The sand caves outside Kuldiga. We knew they were there but finding them was another issue. The caves were started by the landowners children - all 12 of them. The sand was so white and fine that it was then mined for over a hundred years - being sent as far away as England for use in glass making. There are about 2 km of tunnels but only 800 metres is now open for the tourist trade. In this 800 metres you end up 11 metres underground where the temperature is a constant 6C.
