Yellowstone

Visitors to Yellowstone National Park's Lower Geyser Basin are sharing striking photos of Silex Spring, a hot spring known for its intensely colored waters. The vivid greens and blues come from heat-loving microbes and minerals in the geothermal pool. Hikers and nature photographers say the colors were 'unreal' during recent visits, adding to the park's draw in peak season.

A visitor on a photography workshop at Yellowstone National Park shared images of a grizzly bear spotted during their first trip to the park, taken from a safe distance with a Lumix camera. The sighting highlights the park's famous wildlife viewing, where bears are a top draw for photographers.