Lateral Buoys depend on the ‘Upstream Direction” system. Upstream is ‘from seaward toward the headwaters of a river, into a harbour, or with the flood tide (in that order). In general, it is a northerly direction along the Pacific Coast.
Remember RED RIGHT RETURNING. Keep the Red buoys or daymarks on the Right side when returning to harbour (upstream Direction). Cardinal Buoys depend on reference to the cardinal points of the compass.