The Best Things To Do Around The Main Line with Kids

Discover the best family-friendly things to do in and around the Main Line with kids, including events, festivals, attractions, and free activities through our curated calendar. Find what’s happening in Chester, Delaware, and Montgomery Counties today and plan your next family adventure!

💞 Check out our sister Community Calendars too: Philadelphia Family and Bucks County Parent.

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Main Line Parent Community Calendar

Festival of Colors

East Goshen Park 1661 Paoli Pike, West Chester

Family-friendly Festival of Colors — celebrating 10 years in Chester County with safe, natural colors for kids.

ElderNet’s 50th Anniversary Celebration

The Bryn Mawr Gazebo 9 S. Bryn Mawr Avenue, Bryn Mawr

Time to celebrate 50 years with food, entertainment and more! For 50 years, ElderNet has been the quiet force helping older adults in Lower Merion and Narberth remain safe, nourished, and connected at home.

Astronomy Day 2026

The Franklin Institute 222 N 20th St, Philadelphia

Celebrate International Astronomy Day at The Franklin Institute. Spend the day unlocking the mysteries of the universe across four floors of out-of-this-world experiences, including the two-story Wondrous Space exhibit, Fels Planetarium, and the Holt & Miller Observatory.

Izzy’s Earth Day Party!

Elmwood Park Harding Boulevard, Norristown

With fun, hands-on activities, children will explore nature in exciting, memorable ways that inspire them to care for and protect our planet at Elmwood Park's FREE Earth Day Party!