Huge Waterfront art festival in St. Pete: mainsailart at Vinoy Park. The Mainsail Art Festival features 250+ artists at Vinoy Park in downtown St. Pete - and it’s totally free to attend. Day 1 was April 20, but you can also visit tomorrow, April 21 from 9:30am-5pm. The festivities also include food vendors, and live music. 📍701 Bayshore Dr NE #downtownstpete #stpeteflorida #arts #artfestival #waterfront #floridavibes #pureflorida #727 #mainsail