You may find yourself being entertained by locals who hop on the bus to do a clown act or play guitar or 10 year old boys singing about their lost loves, all for a few pesos. The bus will pass by several of the gay bars before turning around at Lazaro Cardenas Park on the South Side. To go to Conchas Chinas, Mismaloya, Boca de Tomatlan or any of the south shore accommodations, buses leave from Basilio Badillo street at Constitucion street on the South Side, 7am-10pm. Motor vehicles have the right of way in Mexico, not pedestrians. We don't want to sound like your mother, but buses in Puerto Vallarta are noted for traveling at excess velocity, so be careful crossing the street.
Drug offenses are risky business in Mexico.
Mexico's drugs laws are more reactionary and ridiculous than those of the States. Under Napoleanic law, you're guilty until proven innocent. If you must, be extremely discrete. If you're caught, you may be deported, have a prison term or have to pay a considerable fine. Police occasionally stop and frisk locals and tourists, checking for drugs.