Beach cleanup party planned at Double Bluff Volunteers are needed to help pick up beach litter at Double Bluff County Park from noon to 3 p.m. Tuesday, Dec. 13. December 12, 2011 2:25 pm Volunteers are needed to help pick up beach litter at Double Bluff County Park from noon to 3 p.m. Tuesday, Dec. 13. The clean-up effort is sponsored by the WSU Extension. Gloves and litter bags will be provided.