* = Pre-registration Required

Month Long Events

Rivertowns Earth Month Scavenger Hunt | March 29 to May 3, 2026 | Hastings to Sleepy Hollow

Saturday, Mar 28, 2026

North Salem 2026 Annual Roadside Clean-up! | 9:00 AM – 11:00 AM | 274 Titicus Road North Salem, NY 10560

Sunday, Mar 29, 2026

TarryHollow Repair Cafe | 10:00 PM – 2:00 PM | James F. Galgano Building Sleepy Hollow Senior Center,  55 Elm Street, Sleepy Hollow, NY 10591

Saturday, Apr 4, 2026

*Cleanup at Twin Lakes County Park with Hudson River Restoration Project | 10:00 AM – 12:00 PM | Twin Lakes Park, Eastchester, NY 10709 

Montrose Mobile Shredder | 10:00 AM – 1:00 PM | Hendrick Hudson Free Library, 185 Rd #1236 Kings Ferry, Montrose, 10548

Wednesday, Apr 8, 2026

*Westchester Soccer Club’s Sustainability Night | 7:00 PM | The Stadium at Memorial Field, 431 Garden Ave, Mount Vernon, NY 10553

Dobbs Ferry Mobile Shredder | 9:00 AM – 12:00 PM | Water Front, 11 Station Plaza, Dobbs Ferry 10522

Friday, April 10, 2026

Valhalla Mobile Shredder | 10:00 AM – 1:00 PM | Mount Pleasant Community Center, 125 Lozza Dr., Valhalla NY 10595

Saturday Apr 11, 2026

Tarrytown Mobile Shredder | 10:00 AM – 1:00 PM | Green St Parking Lot – Green Street, Section F, Tarrytown, NY 10591

*Compost Distribution | 10:00 AM – 2:00 PM | Willson’s Woods Park, 8 Bradford Rd, Mt Vernon, NY 10553

Friday, Apr 17, 2026

*Stargazing at O’Hara | 7:30PM – 9:30PM | O’Hara Nature Center 170 Mountain Rd, Irvington, NY 10533 (rain or cloudy skies date 4/20/26)

Mount Vernon Mobile Shredder | 10:00 AM – 1:00 PM | Mount Vernon Public Library,  28 S. 1st Ave., Mt. Vernon, NY 10550

North Salem Mobile Shredder | 10:00 AM – 12:00 PM | Town Court/Police Station, 66 June Rd. North Salem, NY 10560

*Collapse & Renewal | 7:00 PM – 9:00 PM | Irvington Presbyterian Church, 25 N Broadway, Irvington NY 10533

Free film screening and Q&A “The Keeper” | 3:00 PM – 5:00 PM | Pace University, Willcox Hall, Multipurpose Room,  861 Bedford Rd, Pleasantville, NY 10570

Saturday, Apr 18, 2026

*Mamaroneck Clean and Green Day and Compost Soil Giveaway | 9:30 AM – 12:00 PM | Harbor Island Park, 60 Harbor Island Park, Mamaroneck, NY 10543 (raindate, 4/19/26) 

*Town of Mamaroneck Annual Spring/Earth Day Cleanup | 10:00 AM – 12:00 PM | Leatherstocking Trail, 21 South Drive, Larchmont, NY

Sleepy Hollow Earth Day Festival & Picnic | 10:00 AM – 12:30 PM | James F. Galgano Senior Center, 55 Elm St, Sleepy Hollow, NY 10591

Hastings-on-Hudson Repair Cafe | 10:00 AM – 2:00 PM | James V. Harmon Community Center, 44 Main Street, Hastings-On-Hudson, NY 10706

Tuckahoe Earth Day Celebration | 12:00 PM – 3:00 PM | William E. Cottle School, 2 Siwanoy Blvd, Eastchester, NY 10709

Earth Day Family Event | 11:00 AM – 1:00 PM | The Green at Cross County Center, 8000 Mall Walk, Yonkers, NY 10704

Harrison Mobile Shredder | 10:00 AM – 1:00 PM | Town Hall -Commuter Parking Lot, 1 Hieneman Pl., Harrison, NY 10528

Bluebird Community Nest Monitoring | 1:00 – 3:00 PM | Ward Pound Ridge Reservation, Reservation Rd, Pound Ridge, NY 10576

Horsemen Family Earth Month Festival| 10:00 AM – 12:30 PM | Barnhart, Park, 25 Andrews Lane, Sleepy Hollow, NY

E-Waste Recycling Day | 9:00 AM – 1:00 PM | Somers Intermediate School, 240 Route 202, Somers, NY 10589

Ossining Repair Cafe | 11:00 AM – 3:00 PM | Joseph G. Caputo Community Center, 95 Broadway, Ossining, NY 10562

Earth Week Kick-Off with EcoPel | 1:00 – 3:00 PM | Town of Pelham Public Library, 530 Colonial Ave, Pelham, NY 10803

Sunday, Apr 19 2026

Mount Kisco Earth Day | 11:30 AM – 4:00 PM | Fountain Park, 100 East Main St. Mount Kisco, 10549

Mount Kisco Mobile Shredder | 10:00 AM – 1:00 PM | Fox Senior Center, 198 Carpenter Ave., Mt. Kisco, NY 10549

Somers Repair Cafe| 11:00 AM – 3:00 PM | Somers Library, Programming Room, 82 Primrose St, Katonah, NY 10536

Monday, Apr 20, 2026

Monday Earth Week with Village of Pelham Manor | 9:00 AM – 11:00 AM | Village of Pelham Manor at Esplanade & Boston Post Rd, Pelham Manor, NY 10803

Tuesday, Apr 21, 2026

*Pitch in For Parks – Muscoot Farms | 3:00-  6:00 PM | 51 NY-100, Katonah, NY 10536

*Compost Distribution Event & *Community Compost Bin and Rain Barrel Sale | 4:00 – 7:00 PM | Glen Island Park, Weyman Ave, New Rochelle, NY 10805

The Path to Clean Energy in the Hudson Valley | 7:00 PM | Somers Library Program Room, 80 Route 139, Katonah, NY 10536

Building Resilience to Coastal Climate Change Impacts | 6:30 PM |  Virtual OR Teatown Carriage House, 1600 Spring Valley Rd, Ossining NY 10562

Wednesday, Apr 22, 2026

New Rochelle 2026 Earth Day Festival | 4:00 PM – 7:00 PM | New Rochelle City Hall Rotunda and Great Lawn, 515 North Ave, New Rochelle, NY 10801

19th Annual Blessing of the Hudson River | 7:30 AM | Habirshaw Park Beach, 35 Alexander Street, Yonkers, NY 10701

Earth Day Panel – Rethinking the Environmental Movement | 7:00 PM | Irvington Theater, 85 Main St, Irvington, NY 10533

Coyote Coexistence Program | 7:00 PM | Somers Library Program Room, 80 Route 139, Katonah, NY 10536

Rye Mobile Shredder | 10:00 AM – 1:00 PM | Recreation Tennis Lot, 281 Midland Ave., Rye, NY 10508

Thursday, Apr 23, 2026

*Pitch in For Parks – Willson’s Woods Park | 4:00 – 6:00 PM | 8 Bradford Rd, Mt Vernon, NY 10553

Dobbs Ferry Mobile Shredder | 9:00 AM – 12:00 PM | Water Front,  11 Station Plaza, Dobbs Ferry, NY 10522

South Salem Mobile Shredder | 10:00 AM – 1:00 PM | Town Park, 1079 Route 35., South Salem, NY 10590

*Learn About the Birds of Spring in Somers | 7:00 PM | Virtual

Friends of Mount Pleasant Library Book Sale | 10:00 AM – 7:30 PM | Mount Pleasant Public Library 350 Bedford Road. Pleasantville, NY 10570

Friday, Apr 24, 2026

Cortlandt Manor Mobile Shredder | 10:00 AM – 1:00 PM | Town Hall, 1 Heady St., Cortlandt Manor, NY 10567 

*Birdhouse Building at Ridge Road Park | 9:00 AM – 12:00 PM | 287 Ridge Rd, Hartsdale, NY 10530 

*Pitch in For Parks – Ridge Road Park | 10:00 AM – 1:00 PM | 287 Ridge Rd, Hartsdale, NY 10530

Find the Birds of Spring in Somers | 7:30 AM | Angle Fly Preserve, 55 Route 139, Katonah, NY

Celebrate Arbor Day | 10:00 AM | Bailey Park, (across from Elephant Hotel) 292 Route 202, Somers, NY 10589

Arbor Day 2026 Zeta Nu Omega Tree Planting | 3:00 – 4:00 PM | Philipse Manor Hall, 29 Warburton Ave, Yonkers, NY 10701

Rummage Sale | 9:00 AM – 5:00 PM | Pleasantville Presbyterian Church, 400 Bedford Road, Pleasantville, NY 10570

Friends of Mount Pleasant Library Book Sale | 10:00 AM – 4:30 PM | Mount Pleasant Public Library, 350 Bedford Road, Pleasantville, NY 10570

Arbor Day Celebration at the Hutchinson River | 3:00 – 5:00 PM | Hutchinson Ave & East 3rd Street, Mount Vernon, NY

Saturday, Apr 25, 2026

Green Ossining 16th Annual Earth Day Festival | 10:00 AM – 6:00 PM | Louis Engel Waterfront Park, 25 Westerly Rd, Ossining, NY 10562

*Chaos and Catharsis: Rev Billy and the Stop Shopping Choir | 7:00 PM – 8:30 PM | Irvington Theatre, 85 Main St, Irvington, NY 10533

Larchmont Earth Day Celebration | 1:00 PM – 4:00 PM | Constitution Park, 120 Larchmont Ave, Larchmont, NY 10538 (raindate, 4/26/26)

Village’s Free Day | 9:00 AM – 5:00 PM | Sleepy Hollow and Tarrytown Participating Households

Native Plant Seed Giveaway | 10:00 AM – 12:00 PM | Port Chester-Rye Brook Public Library, 1 Haseco Ave, Port Chester, NY 10573

An Eco Afternoon | 12:00 PM – 3:30 PM | 55 Westchester Avenue Pound Ridge, NY 10576

Earth Day at Nature Center at Greenburgh | 10:00 AM – 3:00 PM |  99 Dromore Rd. Scarsdale, NY 10583

Sustainable Dobbs’ Dirt Fest | 11:00 AM – 4:00 PM | Waterfront Park (Dobbs Ferry),  87 Chestnut St, Dobbs Ferry, NY 10522 (rain date 4/26/26) 

8th Annual Sakura Cherry Blossom Festival in Hastings | 12:00 PM – 4:00 PM | Pocket Park, Villard Ave & Broadway, Hastings-on-Hudson, NY 10706  

Tarrytown Earth Day Celebration | 10:00 AM – 12:00 PM | Neperan Park, 43-61 Neperan Rd, Tarrytown, NY 10591 

Westchester Native Plant Center Annual Native Plant Sale | 10:00 AM | Hartford Hall, 75 Grasslands Road Valhalla, NY 10595-1693

*Pitch in For Parks – Tibbetts Brook Park | 10:00 AM – 2:00 PM | 355 Midland Ave, Yonkers, NY 10704

*Pitch in For Parks – Glen Island Park | 10:00 AM – 2:00 PM | Weyman Ave, New Rochelle, NY 10805

*Pitch in For Parks – Bronx River Reservation | 10:00 AM – 2:00 PM | Westchester County Center, East Lot, 198 N Central Ave, White Plains, NY 10606

*Pitch in For Parks – Scout Field | 10:00 AM – 2:00 PM | 1820 Midland Ave, Yonkers, NY 10708

Leave No Trace & 10 Essentials for Safety Hike | 9:15 AM | Heritage Hills Activities Center, 8 Heritage Hills Drive, Somers, NY 10589

Medicinal Plant & Tree Tour | 10:00 – 11:00 AM | Lasdon Public Gardens and & Veterans Memorial 2610 NY-35, Katonah, NY 10536

Return of the Fisher Study | 2:00 PM | Somers Town House, 335 US-202 Somers, NY 10589

Pick Up Pelham | 9:00 AM – 11:00 AM | Siwanoy Elementary School, Colonial Elementary School, Prospect Hill School, Hutchinson Elementary School; Four Corners and Shore Park, Pelham Manor; Secor Lane Clover Field Trestle; Shea and Pelham Train Station

Rummage Sale | 9:00 AM – 2:00 PM | Pleasantville Presbyterian Church, 400 Bedford Road, Pleasantville, NY 10570

Friends of Mount Pleasant Library Book Sale | 10:00 AM – 4:30 PM | Mount Pleasant Public Library 350 Bedford Road. Pleasantville, NY 10570

Vernal Pool Education Program | 9:00 – 10:30 AM | Michigan Road, Pound Ridge, NY 10576

Kitchen Knacks: Homemade Kitchen Cleaners | 11:00 AM – 12:30 PM | Hilltop Hanover Farm, Yorktown Heights, NY 10598

Sunday, Apr 26, 2026

Drive Electric Briarcliff Manor Earth Day | 12:00 PM – 4:00 PM | Briarcliff Manor Library Parking Lot, 1 Library Drive, Briarcliff Manor, NY 10510  

Briarcliff Manor Earth Day 2026 | 12:00 PM – 4:00 PM | Law Memorial Park, 1031 Pleasantville Rd, Briarcliff Manor, NY 10510 

Bedford 2030 EarthDay Fest | 12:00 PM – 4:00 PM | Bedford Village Memorial Park, 65 Greenwich Rd, Bedford, NY 10506 (raindate, 5/3/26)

New Castle Earth Day Celebration | 12:30 PM – 5:00 PM | Gedney Park, 155 Millwood Rd, Millwood, NY 10546

Ardsley Pollinator Day | 12:00 PM – 3:00 PM | Ardsley Community Center, 18 Center Street Ardsley, NY

Earth Day, Every Day: What Can We Do? | 11:30 AM | Somers Library Program Room, 80 Route 139, Katonah, NY

Wildflower Walk | 1:00 – 2:30 PM | Muscoot Farm, 51 Route 100, Katonah, NY 10536

Friends of Mount Pleasant Library Book Sale | 1:00 PM – 4:30 PM | Mount Pleasant Public Library, 350 Bedford Road, Pleasantville, NY 10570

WESPAC 2026 Social Forum | 12:00 – 5:00 PM | Westchester County Center 198 Central Ave, White Plains, NY 10606

Renewable Energy: Technology & Jobs Forum | 3:00 – 5:00 PM | SUNY Westchester Community College, 75 Grasslands Rd (Parking Lot 8), Valhalla, NY 10595 

Wildflower Walk | 1:00 – 2:30 PM | Muscoot Farm, 51 NY-100 Katonah, NY 10536

Tuesday, Apr 28, 2026

Free Native Tree and Shrub Giveaway | 5:00 – 7:00 PM |  The Greenburgh Public Library (multipurpose room), 300 Tarrytown Road, Elmsford, NY 10523

*Compost Distribution | 4:00 – 7:00 PM | Sprout Brook – DEF Facility, 5729 Albany Post Rd, Cortlandt Manor, NY 10567

Wednesday, Apr 29, 2026

*Invasive Plant Management | 10:00 AM – 1:00 PM | Nature Study Woods, 823 Webster Ave, New Rochelle, NY 10804

Thursday, Apr 30, 2026

Yonkers Mobile Shredder | 10:00 AM – 1:00 PM | Murray’s Skating Center, 348 Tuckahoe Rd., Yonkers, NY 10710

*Tree Planting at Scout Field | 10:00 AM – 1:00 PM | 1820 Midland Ave, Yonkers, NY 10708

Saturday, May 1, 2026

*Garage Cleanup at Mountain Lakes Park | 9:30 – 11:30 AM | 201 Hawley Rd, North Salem, NY 10560

Saturday, May 2, 2026

Croton Earth Day Celebration 2026 | 12:00 PM – 4:00 PM | Vassallo Park, Old Post Road South, Croton-on-Hudson, NY 10520 (Rain date is Saturday, May 9, 2026)

*Riverkeeper Sweep | 8:00 AM – 4:00 PM | 100 Stewardship Project Locations

Native Tree and Shrub Give Away | 10:00 AM – 11:00 AM | Lasdon Public Gardens, 2610 Amawalk Road, Route 35 Katonah, NY 10536 

Saturday, May 16, 2026

White Plains Third Annual Sustainability Fair and Butterfly Release | 1:00 PM – 4:00 PM | White Plains Public Library, 100 Martine Avenue, White Plains, NY 10601

Saturday, May 30, 2026

Town of Rye EcoFest | 11:00 AM – 4:00 PM | Crawford Park, 122 N Ridge St, Rye Brook, NY 10573

* = Pre-registration Required