One nearby nature practice that I've developed over the past few years is to walk to the nearest grocery store and/or nearest branch of the Calgary public library several times each week. I can get there and back in about 30 minutes (depending on the length of the self checkout line). As I walk, I observe the state of the cultivated and wild flowers, birds, ants, the sky, the colour and length of the grass and whether it's going to seed, the way shadows fall, and anything else that catches my attention.