During the summer, the Park Service offers tours of the house approximately hourly between 9:30 AM and 4:00 PM, and when staffing permits, four underground tours as well, scattered throughout the day.
During the rest of the year, the Park Service offers house tours more frequently, usually every 10-30 minutes throughout the day between 9:00 AM and 5:00 PM, and also offers 5-10 underground tours from 9:15 to 3:45.