Be still. Then don't be.

There is nothing quite like a pond at dusk. Not ten minutes stroll from the B&B I stay in when reluctantly having to lay over in Brackley for work, this little oasis warms my cockles the more I see it.
It seems to be replete with allsorts of fish (at least four of whom have noisily eaten each other as I've written this) but with clear water. It has the ubiquitous obstreperous moorhen war going on, enjoys may bats and supports an insect population that keeps them all well fed.
These things are gems. Find your nearest one and look after it.