An aerial view shows a large vernal pool and the surrounding landscape in Aurora, Maine. The state has more forested area—nearly 90 percent of the land—than any other state in the country.

Fort Worth needs 41 more public pools to pull even with Austin, said Chris Reed who was a leader in the campaign to maintain the 50-meter length of Forest Park Pool.

Tucked away in the heart of the forest, we created something truly magical—twin swimming pools made entirely of stone and built by hand. Using only primitive tools, this natural project brings ...