This is the easiest and most affordable way to explore some of san antonios top attractions at your own pace the san antonio explorer pass valid for 30 days after your first use provides admission to your choice of three four or five attractions tours or activities that will save you up to 40 percent on regular ticket prices plus you can enjoy perks like skip the line entry create your own sightseeing itinerary by choosing from among top sites and things to do including six flags fiesta