Attempt to access the website parkplanning.nps.gov. If the website is inaccessible, clearly state that the website cannot be reached and explain why. Do not proceed with any further actions if the website remains inaccessible.
Navigate to http://parkplanning.nps.gov/ If the navigation fails due to a timeout or similar accessibility issue, report the website's inaccessibility.
Successfully identifies and reports that http://parkplanning.nps.gov/ is inaccessible. The reason for inaccessibility (e.g., timeout error) is clearly stated in the final answer. No further actions are attempted if the website remains inaccessible.