Have fun in Philly (my hometown for 30 years). Try to get to Reading Terminal Market asap for lunch and to buy just about anything you like to eat. Nothing even close to it here.
If you mountain bike at all make sure you get to the Wissahickon Trails.
For real Italian food hit Ralph’s in South Philly (9th and Catherine). Its the oldest restaurant in the US continuously owned by the same family.