If the guiding principle of the East Bay Vintners Alliance is that “one need not live in a vineyard to make fantastic wine,” then the ninth annual Urban Wine Xperience is as good a place as any to test that theory out. More than twenty wineries will set up tables on the Ferry Lawn at Jack London Square. Each ticket includes unlimited tastings of three wines per vintner, which means — well, no one should go home thirsty. Local restaurants will also offer small bites designed to complement each of the wines being poured. Tentative food offerings include esquite placero (a roasted-corn street snack) from Nido, black squid-ink paella from Venga Paella, and oysters on the half-shell from AlaMar.