Gretna Theatre has been offering a summer season of theatre at the Mt. Gretna Playhouse since 1927. Presenting a mix of Broadway musicals and comedies, as well as musical revues and theatre for children during the summer, Gretna Theatre also presents special events and educational outreach programs at other venues during the remainder of the year. The pavilion-style venue is ideal for guests to catch fresh summer breezes and has 708 seats. Tickets may be purchased online, by phone (717-964-3627) or in person at the Box Office from the last week of May through the end of the summer season.