Unlike an ordinary dance, a costume ball generates an air of elegance and the chance for confidently anonymous guests to approach a dancing gorilla. Revel in gregarious getups with today's Groupon to Carnevale at Castle McCulloch in Jamestown. Choose between two options:

• For $20, you get two tickets to Carnevale at 7 p.m. Friday, August 26 (a $40 value)
• For $40, you get two tickets to Carnevale at 7 p.m. Saturday, August 27 (an $80 value)

Summer Carnevale fills Castle McCulloch's 19th century grounds with frenetic performances of fire-spinning, acrobatics and dance music for a 21+ crowd. Costumed partiers enter the castle gates, where complimentary masks are available for forgetful faces or windswept convertible drivers. As guests peruse the waterfront terrain of the gold mill, built in the early 1800s, live music and record-spinners serenade still body parts with rhythm-infused beats, creating an ever-moving throng of dancers. Randy Smith concocts a melodic stew of Euro-style disco, and drum circles drive a pulsing beat for crews of belly dancers.

Devilish flame performers spin, juggle, and breathe fire, and skilled circus virtuosos engage in aerial feats on trapezes. Light food and beverages fuel joviality, and a costume contest awards crowd-favorite attendees. Palm and tarot-card readers predict the paths of those wandering the expansive grounds, complete with bridge, courtyard, and dragon's study.