Resolution retroactively approving the sixth amendment to the contract with the California Department of Parks and Recreation Division of Boating and Waterways that requires the San Francisco Recreation and Park Department to operate and maintain the improvements made to the Lake Merced Boat Dock with Division of Boating and Waterway funds and extending the term from February 1, 2022, for a total term of March 1, 2015, through September 4, 2041, pursuant to Charter, Section 9.118(a); and to authorize the San Francisco Recreation and Park Department General Manager to enter into modifications and amendments to the grant contract that do not materially increase the obligations or liabilities to the City and are necessary to effectuate the purposes of the project or this Resolution.