School of Rock student bands take over the castle for an afternoon showcase on Saturday, October 24 from noon to 6:00 PM. Rock 101, Performance Program and House Band groups play full live sets. No cover charge and no admission fee at the Castle. Lunch, dinner and the chef’s specials available at The Tavern at Silver Stone Castle all day. All ages. Silver Stone Castle, 358 GAR Highway, Swansea, MA.