In the sequel to the best-selling 50 States, 5,000 ideas, National Geographic turns to the United States' and Canada's most pristine--and adventure-filled--national, state, and city parks with 5,000 ideas for the ultimate vacation. Showcasing the best experiences, both obvious and unexpected, each entry in this robust guide provides an overview of the park, detailed travel advice, fascinating facts, insider knowledge about wildlife, and expert tips for hiking, biking, camping, and exploring. From the geysers of Yellowstone National Park to the Everglades' Nine Mile Pond Canoe Trail and the stunning peaks of Banff and Jasper in Alberta, each page will fuel your wanderlust. Plus, explore the n