The calendar will be turned back to the mid-1700s at Fort Necessity National Battlefield in Pennsylvania when a re-enactment of the French and Indian War will be staged.

Dancing on the morning breeze, the sea oats sway to and fro while the Atlantic surf crashes the beach. Two surfcasters, knee deep in the water, wait for the inevitable bite. This is seashore perfection: no crowds, no boom boxes, no wafting sunblock mixed with the fresh ocean air. It doesn’t get much better if you’re searching for a slice of wild America.

Some of the best paddling waters in the National Park System can be found in Grand Teton and Yellowstone national parks, and for years these two parks offered a great deal: One permit for boating in both parks. Concerns about invasive aquatic species have made that deal a thing of the past.

The Lower Emerald Pool Trail at Zion National Park in Utah will be closed for two days late this week so crews can make trail repairs.