Going Around Castle William - Tours on weekdays and weekends at 12:30 PM and 2:30 PM. About 30 minutes. Get some history in the round at the best-preserved circular fortification in the nation.
The Big Walk Around the Island – See the whole history of the island in one go. This ranger program examines most of the older buildings on the island. We’ll tell you the back stories on some of them. No tickets or reservations required. Visitors should be prepared to stand for a full 90 minutes and walk a distance of about 1.5 miles. No tickets or reservations required.
Saturdays, 2:30pm – 4:00pm
Sundays, 12:30pm – 2:00pm
Meet the ranger at the top of the hill from Soisson’s Landing
More information at http://www.nps.gov/gois/index.htm