These are the results of the SAN FRANCISCO NIGHTLIFE SURVEY, covering hundreds of bars, clubs and lounges in the San Francisco area. In contrast to the RESTAURANT SURVEYS, where the surveyors average age is 41, the participants in this survey average out at age 36. 71 per cent. To guide the readers to the best watering holes to suit their tastes, moods and budgets, there are a number of category lists, for example, Most Popular, Top Ratings and Best Buys. On the assumption that most people want a quick fix on the places at which they are considering socialising, there are about 50 handy and concise indexes. ZAGAT'S second ever SAN FRANCISCO NIGHTLIFE SURVEY spotlights both centuries old traditional bars and trendy, minimalist lounges and clubs. The diversity of venues means that goths, pre-clubbers, lads and tourists can all have the best of times.