Senior Services will host a trip to the 20th annual Iris Festival in Greeneville, Tenn., on Saturday, May 17. The bus will depart from the center promptly at 9 a.m. and will return at 3 p.m. Participants will have lunch on their own. Registration deadline is Wednesday, May 14. A $3 transportation fee is due at registration. For more information or to register, call (423)434-6237.