The Joshua Tree Retreat Center’s open Community Drum Circle for March celebrates the beginning of spring tomorrow from 7 to 9 p.m. in the sanctuary. Well-known Marengo Basin percussionist Sam Sloneker will facilitate the gathering. Participants are encouraged to bring drums, shakers, tambourines, etc.; a number of instruments will also be available for use at the event. There is no charge to attend, though a suggested donation of $5 per participant or $10 per family will be welcomed and appreciated. The Joshua Tree Retreat Center at the Institute of Mentalphysics is located at 59700 Twentynine Palms Hwy. in Joshua Tree. For more information, call the Center at 760-365-8371.