Gardening beside a river!

On Tuesday MrPP and I mowed the grass at a friend's watermill - he flew round the meadow with the tractor (most of it is left uncut) while I carefully cut the garden, lots of borders full of iris and roses and hibiscus, much of it on an island between the race and overflow.
Between Tuesday night and Thursday we had almost 50mm of rain, the river went from 50cm to 4m deep and most of the borders have vanished along with huge logs, trees and part of the mill race overflow.
Still, cutting the grass will be much quicker next week!
The owners are pretty relaxed about it - it goes with the territory of living beside a mountain river,  I guess. Definitely not for me, though.