Review for Three Rivers Casino Resort Review For Harrah's Philadelphia Google User Jan 11 '18 at 2:15 Love guy fieri restaurant. Highly recommended. If you go, order the trash can nachos. However, YOU MUST BE 21 TO ENTER. We're not from Philadelphia and didn't know in order to enter the restaurant you have to cross the casino floor and therefore you must be 21. View full site to comment or like