For the Garlic family of Woodstown, New Jersey, the day doubled as a celebration.
"It's a family affair," said Alan Garlic, who attended with his brother and their father, Alvin,"We're posted up on the 18th, the grandstands of the 18th."
The outing marked a milestone for their father. "Beautiful day, my dad is 80 tomorrow," Alan said, adding that he was excited to see players like Rory McIlroy and Brooks Koepka.
The Garlics were among an estimated 200,000 spectators expected to attend the championship over the course of the week. The third round drew large weekend crowds, filling viewing areas and fan zones across the course.
Rick Wild, who traveled from Raleigh, said the setup has impressed fans while challenging golfers.
"The setup has been fantastic, and it's really the test of golf that they want to have here," Wild said.
Wild attended with his son, Tanner, who came from Pittsburgh. Despite living in different cities, the pair reunited in Newtown Square to bond over their shared love of golf.
"It's pretty interesting listening to all these guys after their round talking about how tough these pin locations are playing, so it's cool to watch them on TV, but even cooler to see them come take on this course in person," Tanner Wild said.
Off the course, spectators took advantage of the tournament's fan experience areas, which offered complimentary food and beverages. The PGA merchandise store, spanning 50,000 square feet, also drew large crowds.
Joe Bendinelli of West Chester said he spent much of his time shopping before heading out to the course.
"I'm enjoying myself so far. I have to get out to the course. I haven't seen one golfer so far. I spent most of my time in the merchandise tent," Bendinelli said.
While fans enjoyed the atmosphere, players faced a challenging course setup that tested even top competitors.
"Everyone takes for granted that you take these classic old golf courses that are short in yardage and they're struggling," said Joanna Coe, director of instruction at Merion Golf Club, who is commenting on the championship for ESPN.
For Coe, the tournament also highlights the region's golf community.
"It's great to see the golf community show up, support this event, but also to put golf in the spotlight for Philadelphia," she said.
The championship concludes Sunday, when tens of thousands of fans are expected to return to Aronimink for the final round and see who emerges on top.