For much of the country weary of the cold, the winter of 2014 can't end soon enough, but at Apostle Islands National Lakeshore, the combination of frigid conditions and word spread by social media has resulted in record visitation to the park. The draw? Sea caves, accessible only by boat in the summer, are festooned in ice in winter, and can be reached by walking across the now-frozen waters of Lake Superior.

In this video, National Park Service staff and partnering scientists talk about climate change in the context of Jamestown Island in Virginia, the site of the first permanent English settlement.

San Francisco Maritime National Historical Park is offering a free training course for those interested in joining the park’s volunteer docent program.

Barring another lawsuit, a nearly 40 percent increase in campground space and 5 percent more lodging will be allowed in the Yosemite Valley under the final Merced River plan released Friday by the National Park Service.