A nice annual arts, music, and food festival in June which runs over 2 weekends and during the week between for free admission. It is especially nice when it's a sunny day to enjoy festivities (this appears to be a quite rainy time of our year).
Food: Run-of-the-mill food booths with usual outdoor fare. TIP: Do NOT get the haluska in the Polish food line. I love this dish with noodles and cabbage but this was not anything representative of the dish. It was basically egg noodles and a tiny few bits of cabbage swimming in oil. Yech. I do wish I had tried the lobster burgers (note: they were off to the side and not in the general food booth area of Point State Park). TIP: Take your food and head to the Point State Fountain area for some shade because the picnic tables and food booths are totally devoid of any shade on a sunny day. TIP: We did find a food truck with bottled watter and soda for $1.00 each. I thought that was extremely reasonable.
Music: Many varieties, multiple stages for free.
Art: Surprisingly good selections and some very distinct high-end quality art from jewelry, pottery, wood bowls/vases, to paintings. Not limited to local artists.
Parking: Might I suggest you park in the 1st Ave garage (right off 2nd ave exit on I-376) for a flat rate of $5 on weekends and take the "T" transit for free to the Gateway station. You'll be right where you want to be and avoid congestion trying to park anywhere else.
Restrooms: Porta-potties were gross shortly after noon on Saturday, the 2nd day of this event. Seriously gross, more gross than gross of any other event I've ever been to or any selection of portable restrooms I've ever witnessed. Ever. Might I suggest the static restrooms near the Point fountain, the restrooms at the 1st Ave garage when you arrive or leave, or dining at Market Square nearby and then using their restrooms?