response: I don't know about the activities but the park's wildlife and geothermal features like Old Faithful are popular features.
original_response: It is know for its wildlife and geothermal features.  Have you hear of Old Faithful geyser?
history: I would love to visit a national park in the United States. There are 59 national parks choices for you then. Which parks are the most popular parks for tourist? I'm not sure but the oldest one, Yellowstone, was created in 1872. What is there to do at Yellowstone park? What activities are available?
knowledge: The park is known for its wildlife and its many geothermal features, especially Old Faithful geyser, one of its most popular features.