PRESERVE CALAVERA IS AN ENVIORNMENTALLY-BASED NON-PROFIT LOCATED IN NORTH SAN DIEGO COUNTY FOCUSED ON PROTECTING, RESTORING, AND IMPROVING OPEN SPACES IN NORTH SAN DIEGO COUNTY. ACTIVITIES INCLUDE OPEN SPACE LAND ACQUISTION, WILDLIFE MONITORING, CLIMATE ACTION PLAN OVERSIGHT, OUTDOOR EDUCATION AND OUTREACH, AND SPECIAL EVENTS INCLUDING CLEAN-UPS, INVASIVE MANAGEMENT, NATURE DAYS, AND NATURALIST WALKS.