• Pennsylvania Piedmont: The Wildlands of Southeastern PA

    The Conference Center at Penn State Great Valley 30 East Swedesford Rd, Malvern, PA, United States

    Celebrate Earth Day and National Parks Week with ecologist Roger Latham! Presented in partnership with Jenkins Arboretum & Gardens and Valley Forge Park Alliance. Step into the Pennsylvania Piedmont with ecologist and conservation biologist Roger Latham to uncover the unique...

    Free
  • Earth Day Outdoor Film Showing

    Join us at the Crossroad's Women's Center for an outdoor showing of films for Earth Day. This event is one in a series of events leading up to the Project Rummage Runway Fashion Show where the theme is Reduce, Reuse,...

    Free
  • Evil Genius x Clean Water Action Earth Day Happy Hour

    You can’t have good beer without clean water. Join Clean Water Action and Evil Genius Beer Company for a post–Earth Day happy hour at the Evil Genius taproom in Fishtown. Members of our Philadelphia team will be there to chat about our...

    Free
  • Cobbs Creek Celebrate Trails Day

    Thomas ave and C obbs Creek Parkway at the playground/park area at Thomas Ave & Cobbs Creek Parkway just north of Whitby Ave. , Philadelphia

    Cobbs Creek Celebrate Trails Day will celebrate its sixth year running on Saturday, April 25th 2026 from 10am-2pm at the playground/park area at Thomas Ave & Cobbs Creek Parkway just north of Whitby Ave. Brought to you by Clean Air...

    Free
  • Astronomy Day 2026 at The Franklin Institute

    The Franklin Institute 271 N 21st St, Philadelphia, PA, United States

    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. Featured Programming: Solar Viewing in Science Park: Safely...

    $23 – $29
  • Camerata Philadelphia – Season Finale

    The Church of the Holy Trinity, Rittenhouse Square 1904 Walnut St, Philadelphia, PA, United States

    CAMERATA PHILADELPHIA - concludes its 2025/2026 Center City Season at Church of the Holy Trinity Rittenhouse Square (1904 Walnut Street, Philadelphia, PA 19103) on Saturday, April 25 @ 1:00 PM. Led by Music Director & cellist Dr. Stephen Framil, the...

    Free
  • Earth Day Organizational Fair

    Philadelphia Ethical Society Building 1901 S. Rittenhouse Square, Philadelphia, PA, United States

    Come join us at the Philadelphia Ethical Society's Earth Day Organizational Fair this April 26th from 10:30-2:00 pm at the Society's beautiful building on Rittenhouse Square, co-hosted with Net Impact Philly. There will be around 15 organizations from Philadelphia present (see list below). The focus of this...

    Free
  • 2026 Temple University Bike Tour

    Temple University Ambler 580 Meetinghouse Road, Ambler, PA, United States +1 more

    2026 Temple University Bike Tour Sunday, April 26, 9 a.m. to 2 p.m. Register now at https://ambler.temple.edu/biketour. General Fee: $35 (Ends April 15) Student Fee: $15 (Ends April 15) Bike Rental Fee: $15 (for Temple Students) Bike Rental Fee: $30...

    $15 – $35
  • U.S. National Squash Championships

    Arlen Specter US Squash Center, 25 N 33rd St, Philadelphia, PA 19104 Arlen Specter US Squash Center, 25 N 33rd St, Philadelphia, PA, United States

    Watch the nation's top squash professionals compete for the title of U.S. National Champion for free! Be in the stands as future Olympians take to the glass court at the world-class Arlen Specter US Squash Center, home of Team USA...

    Free