Tickets are on sale for the Twelfth Annual Secret Garden Tour, which benefits the Friends of the Paragon Carousel. The tour is scheduled for June 24 from 11 a.m. to 3 p.m., and will feature 12 gardens. Their locations are secret until maps are distributed the day of the tour. Tickets are $20 per person, if bought by June 18, and $30 afterward. For more information or to purchase tickets, call 781-925-0472 or visit www.paragoncarousel.com.