Williams Lake (Halifax) Williams Lake, Halifax is a lake of the Halifax Regional Municipality, in Nova Scotia, Canada.HistoryWilliams Lake was created in the late 18th century by settlers who collected rainwater to build a dam. In 1968, the Williams Lake Conservation Company was founded to preserve the lake. The current head of the company is Murray Coolican.GeographyWilliams Lake is located at Cunard Junior High School. It is just outside the community of Spryfield and is approximately 7 km from Downtown Halifax.