Water Everywhere

Stockholm is a great walking city. You have a small section of old winding streets and medieval-feeling churches and homes (although most of them are full of shops selling tourist tchotchkes - one of the best things about Riga's Old Town is that the tchotchke factor is fairly limited); you have an efficient grid-layout modern section of town with neighborhoods and street-level retail; and maybe best of all, you have water all over. Stockholm is built on a series of islands, and it makes for lots of pleasant waterfront bars and cafes and such. We spotted these people taking turns paddling against the current coming over a spillway under a bridge. They weren't hard to spot, since there were twenty or thirty people leaning over the bridge staring at them.