My first question to you is where are you staying so that we can advise you better, because if you are in Nuevo Vallarta, you are about 30 minutes by taxi from downtown, and if you are staying closer to down town, then head to the malecon and just people watch. it is fantastic. you will love Vallarta... there is so much to do or not do, you set the pace that is for sure...
have a great time...
8) Tom aka Mr. Crown
have a great time...