Saltam is a tiny uninhabited low lying tidal island located about 200 metres south of the island of Vallay. It is only about 100 metres long by 50 metres wide and it can be accessed at low tide from North Uist. The island is obviously visited by cows, as there were cowpats dotted around it. However there were none there when I visited on a sunny afternoon in June 2016. Thrift, buttercups, clover and birds-foot trefoil were all in flower.