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.

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.

Vanguard Community Day

The Vanguard School 1777 North Valley Road, Malvern

Community Day returns on Saturday, April 25, 2026, from 11am–3pm. Spend the afternoon in a welcoming, sensory‑friendly environment designed for neurodiverse individuals and families.