The Cambridge YMCA Nationals Gymnastics Team will sponsor a Gymnast for a Day camp on April 29 from 9 until noon at the Cambridge YMCA. Sign ups are April 6, 10 and 13 from 5 until 7 at the YMCA. Preregistration guarantees each participant a t-shirt on the day of the event. The event is open to all between the ages of 5 and 12. Cost is $25. Proceeds support the trip to Nationals in Savannah, Georgia.