Summer Edition: Water Chestnut removal on Van Cortlandt Lake. Join us to remove invasive water chestnut and restore the lake ecosystem. When: Wednesdays, 9:00 AM - 12:00 PM (Note: no event on 6/10) Where: Van Cortlandt Golf House (meet at south entrance) What to bring: Clothes that can get wet and muddy, water bottle, sunscreen. Tools and gloves provided. Ages 15+ welcome (minors need waiver). Limited to 30 volunteers per shift. Groups of 6+ email [email protected] RSVP Now.