Explain how U.S. national parks can be enjoyed by non-outdoor enthusiasts, focusing on accessibility features and alternative activities. Highlight a specific park that offers unique experiences without demanding strenuous physical activity, such as Acadia or Death Valley. Touch on the importance of national parks being inclusive and accessible to a diverse range of visitors. Discuss the role of the National Park Service in ensuring these natural wonders are available to everyone. Conclude with a call to action for readers to explore these majestic parks at their own pace and comfort level.