Water and Wetlands Marines drive an amphibious assault vehicle through the Nu’upia Ponds Wildlife Management Area at Marine Corps Base Hawaii, Feb. 26, 2019, during Mud Ops, an annual effort to fight invasive plants and prepare wetlands for water fowl. SHARE: Download: Full Size (0.89 MB) Tags: Marine Corps Credit: Marine Corps Sgt. Jesus Sepulveda Torres VIRIN: 190226-M-UG171-0005C.JPG Photo Gallery