From their event page: 

Join Fairmount Park Conservancy and the Vendors Association of FDR Park for a tasty tour of the Southeast Asian Market.

South Philly is home to a vibrant Southeast Asian community, with many Khmer, Lao, Vietnamese, and Thai residents who have enjoyed FDR Park for decades! During the warmer months, vendors set up outdoor stalls selling street food, bubble teas and iced coffees, clothing, produce, and more. Eater Philly named FDR one of the top places “Where Philly’s Cambodian Community Leaders Go to Eat”.

Join an expert guide who will lead you around dozens of food tents, with the chance to sample and buy Southeast Asian street food, fresh sugarcane juice, tropical fruit smoothies, homemade spice blends, fermented bean pastes, and so much more! Come with an open mind and an empty stomach!

Click here for more information on the market