Join OCCA and our partners, the Catskill Regional Invasive Species Partnership (CRISP) and Capital Region Partnership for Invasive Species Management (CR-PRISM) and protect the very headwaters of the Susquehanna River from invasive species by pulling water chestnut and European frog-bit in Weaver Lake. Bring a canoe or kayak, or, if you really like to get into your work, a pair of waders! Meet at OCCA’s office and we will carpool to the site. Please register (it’s free) using the form below. Use the ‘Additional message’ box if you need space in a canoe