Greystone Manor Therapeutic Riding Center (GMTRC), 1063 Hartman Station Road, Lancaster, will host an open house in its barn from noon to 3 p.m. on Saturday, May 3. Admission is free.

The activities will include family games and prizes, educational opportunities, and a bake sale. Also, attendees will have the opportunity to meet some of GMTRC's horses.

GMTRC provides horsemanship lessons and group programming for children and adults with special needs. The equine-assisted services program enrolls about 100 participants. For more details, visit http://www.greystonemanortrc.org.