- In our area, Mount Adams, at 12,276’, is the highest summit attainable via a day hike; however, most people do it as a backpack, stopping overnight at the Lunch Counter (9,400’) and heading up the final leg early the next day. Indeed, an overnight might be necessary for acclimatization purposes. For fit hikers, this trip is eminently possible in good weather, and views from the Lunch Counter at sunset and from the summit on a summer morning are the just rewards. Lower down on the route, there are alpine parklands, small wildflower meadows, and rushing streams.