About the lake-patrol boats, i knew aswell, but that doesn't count as "navy" to me. Navy's on the ocean. Or is it?
Navy might be on the ocean, but it's also on a number of flags of the cantons of Switzerland.
F'rexample, Zurich (city of my birth) is navy (blue) and white split diagonally. Blue represents the water and white the mountains. I think Zug is also navy and white and I'm sure there are others - Aargau springs to mind... *Boing boing splash*
But does something have to be seagoing to be in the navy? Aren't naval bases around the UK, which definitely don't float, called HMS [Insert Name Here]. (Couldn't resist