who only by moving can balance

... oooh, difficult. Probably this one, because it's a glorious optical illusion of a bare tree being reflected with leaves of light in the river, but it isn't a very good photograph, technically! I was in Skansen museum, Stockholm with P in February 2015; it was Bloody Cold but nonetheless a delightful tramp round the world in the snow. We were above, as I recall, the bear enclosure; there were cubs flolloping around ineptly; it was grand.