The Pergola at Lake Merritt is a historical landmark and common meeting space for events of all sorts. You might find community celebrations, baby exercise classes, or protests here on any given day. The Pergola and attached colonnade are at the eastern end of Lake Merritt. It is a terrific place to meet your friends for a walk around the lake.
Just adjacent to the Oakland Lakeview Branch Library and the site of the Grand Lake Farmers Market.