Use a Philadelphia Parks & Recreation space Learn about getting a permit to use or reserve a Philadelphia Parks & Recreation space. Permits are recommended for all events. Get a Friends and community group event permit This service will help Friends groups and community groups get a permit for an event at a neighborhood park. Get a permit for a large event or festival You need this permit if you are not a Friends or community group, have 50 or more people, or plan to use certain equipment. Get a picnic permit If you're holding a picnic with 50 or more people, you'll need to apply for a picnic permit. Get a trail permit Get a permit to use trails in Philadelphia. Reserve a Parks & Recreation facility or field You need a permit to reserve part of a Parks & Rec facility for group activity. You also need a permit to use outdoor fields for sports.