Concord Hospital Trust will host an Evening en Blanc, a mass “chic picnic” at a surprise location on Aug. 23 from 6 to 10 p.m. Based on the popular Diner en Blanc launched in Paris, diners arrive dressed all in white with their own well-stocked picnic basket and enjoy an evening of dining, dancing and entertainment. The surprise location will be announced two hours before the event on Concord Hospital’s Facebook page, ConcordHospital.org, CH-Trust.org, and via e-mail communications. To buy tickets visit ch-trust.org and click the Evening en Blanc logo. Ticket contributions support primary, dental and behavioral health care of neighbors in need at Concord Hospital Family Health Centers in Concord and Hillsboro-Deering. For more information, call 225-2711, ext. 3076.