You can walk round the lake to the back of the island and get a clear and closeup view of this nest. It is smaller than the other one, largely, I think, because the island is smaller and a lot more cluttered than the natural island in the river. This lake and its island are artificial, though they have been there since the gardens were established. The island has in the past supported a stage jutting out into the river, for concerts and floodlit ballet. But the swans do not seem to mind the limited space, and they are managing quite happily with a nest which is just as high as the other pair have built, but covering less ground.