Start running on 3rd St.
Turn LEFT on Oak St.
Turn RIGHT on 12th St.
Cross Lake Merritt Blvd/12th St signal, and enter into Lake Merritt. Merge LEFT onto Lake Merritt Waterfront path.
Just past the intersection of 21st St/Harrison St (signal) (near the cathedral) is roughly the 5k turnaround. Reverse direction along the waterfront.
Near the restrooms and by the intersection of Lake Merritt Blvd/12th St (stairway path), turn RIGHT. Cross the signalized intersection and run along 12th St.
Turn LEFT on Oak St.
Turn RIGHT on 3rd St.
Finish at Tiger's Taproom after 2 blocks (at the intersection of 3rd/Jackson).