When I cycle somewhere, I fill up my bottle when I get there (or along the way). I know where all of the water fountains are on my regular cycling routes. Like

When I cycle somewhere, I fill up my bottle when I get there (or along the way). I know where all of the water fountains are on my regular cycling routes. Likewise, when I go for a long walk or a hike, I carry a bottle along and fill it as needed.