Strolling and sitting. Studying intently, sometimes even through binoculars.  Taking it in almost passively just letting the eye wander from soaring heights of Yosemite Falls (bone dry by the way) and Cathedral Mountain to the river side meadows cradling the meandering river.  The common place deer, woodpeckers, jays, and ravens, and the rarer, mama black beer and her cubs shared my day.  It does for the brain and the spirit what a hot tub soak does for the body.   I highly recommend it.