We watched crabs crawl between crevices on the rainbow-coloured rocks and swam along the bottom with schools of little fish.
"There's a rock in the shape of a heart under here," I said to Marg.
"That's just the romantic in you," she said.
"No, it really looks like a love heart," I said and pulled her under to have a look.
We swam a few more lazy laps and congratulated each other for the great idea of coming to this pool where we felt like we were worlds away from anything 'everyday', and any care we had was temporarily washed away.