The Sierra Club Great Waters Group holds monthly programs usually on the Third Monday of every month, excepting summer months of June, July and August when we are out exploring, enjoying and protecting nature.  In December. instead, we hold our annual Holiday Party with a feast, a silent auction, and live entertainment.  This normally takes place the first Sunday in January.  In 2019, the Holiday Party falls on December 8th, due to the late Thanksgiving holiday.  In April, we hold Earth Day celebrations and service activities instead of a Monday program.  Ocasionally the meeting times and locations need to be changed, so always check the calendar.