Across the National Park System many changes are expected from climate change, from more wildfires and vanishing glaciers to invasions of non-native species and flight of long-term residents. Writer/photographer Michael Lanza, concerned that today's park landscapes will change significantly by the time his young kids are his age, has been touring the park system with his family to show his children what they might miss later in life.

Winter long has been regarded as the slow season for national park visits, and that's a good thing if you prefer to have the parks to yourself. With most travelers confined by school schedules to the summer months, and many convinced winter is a bad time to be outdoors, you can savor the best of the parks from coast to coast in winter. Here are some snapshots of wintry fun in the parks that bear that out.

This week the Traveler offers you a series of stories to help you enjoy the coming months in the national parks. We'll take a look at some great lodges to call home for your visit, point out some cold-weather -- and warm-weather -- parks to enjoy (and how to enjoy them), touch on seasonal wildlife moves, and even offer some suggestions on how to stay safe in the parks.

If you live near, or can travel to, Mount Rainier or Voyageurs national parks, or Cedar Breaks National Monument, for one last fall fling, now's the time to do it.