I did 40 miles today from 2:30 to 5:30. Used a cycling road map and tried a new route on some nice roads, through an area of horse farms, past the Wayside Inn, etc.. Then I went off the edge of the map but still managed to not get lost. A short stop at Walden Pond to refill the water and eat a snack. I bet Thoreau would have enjoyed Walden Pond even more if he'd had a bike.