I move rocks, carry 5-gallon buckets of wet gravel short distances, and hike (with or without a small or large backpack).
In the winter, most of my activities are indoors, doing research, reading old mining journals, and checking maps. It sounds sedentary, but my watch tells me that I average between a quarter and a half-mile of walking each day. If it is a grocery shopping day, that number triples because nothing I need is conveniently located near the store entrances.