Most people come to Pictured Rocks National Lakeshore in Michigan’s Upper Peninsula for its namesake — the colorful, mineral-stained sandstone cliffs that line mighty Lake Superior. Those cliffs are ...

Beneath the United States lies a surprising network of caves shaped over millions of years. Some feel almost otherworldly, with strange rock formations and the occasional glow from naturally occurring ...

When delicate cave formations are damaged, Carlsbad Caverns National Park calls on the fix-it skills of Michael Mansur and his growing legion of volunteers. Nothing good happens fast in a cave. Those ...

Beat the summer heat by going underground. Arizona is home to famous caves, like Kartchner Caverns. Here are 5 of the best ...

When the summer sun is blazing, there’s no better way to cool off than by heading underground. Caves offer a naturally air-conditioned escape, along with a chance to explore some of the Earth’s most ...

SAN DIEGO — Southern California is home to countless natural wonders spanning the region’s diverse landscape. Among those destinations, hidden deep in the badlands of Anza-Borrego State Park, is a ...

Our writer explores the limestone caves at this provincial park on Vancouver Island, offering sparkling calcite formations ...

Geology doesn’t often go viral, but one Scottish cave managed to do it by looking like something straight out of a video game. A TikTok video showing its jagged, gold-lit columns caught millions of ...

Ribbons of tangerine, butter and the palest of pinks stretch across the horizon as the sun continues its downward slide. “Sunset is officially 4:44 p.m., just four minutes away,” I tell my husband, Ed ...