visitors can also visit three mile lock or pumphouse park located behind the carillon in william byrd park. this park was a mark at for the old canal system. it contains parts of the old 18th century locks, gatekeeper's house, and the city's 1901 historic water pumping station called the byrd park pumphouse. the city is working on plans to return the pumphouse to some form of public use by restoring its old dance floor (original upper level was built for public events) and opening the oldest section for tours. the park is popular with fisherman and dog lovers, and is near the ship yard.