The Waiting Pool

'I kept coming back to this route for respite from my work and for my work too, because thinking is generally thought of as doing nothing in a production-orientated culture, and doing nothing is hard to do. It's best done by disguising it as doing something, and the something closest to doing nothing is walking.'
(R. Solnit, 2002, Wanderlust: A History of Walking, London: Verso, 5)

If walking is the closest one comes to doing nothing, then swimming is the physical equivalent of waiting. Dive in, hold your breath as you move silently across the bottom of the pool and, when the waiting time is over, remember to re-surface.