Tuckahoe Equestrian Center celebrates 25 years, 9 a.m. to 4 p.m., with demonstrations and lectures at the center, 619 Crouse Mill Road, Ridgely. Demonstrations include hunters/jumpers, western pleasure, mounted archery, dressage and trick riding. Lectures by local veterinarians, a blacksmith and an equine dentist. Tack shop. Free admission.