Families of 3rd Battalion, 4th Marines, 7th Marine Regiment, participate in a rock-climbing wall event during the unit’s final family day hosted at Desert Winds Golf Course, March 21, 2014. The unit's family day consisted of several events for both the children and adults of the family. - Families of 3rd Battalion, 4th Marines, 7th Marine Regiment, participate in a rock-climbing wall event during the unit’s final family day hosted at Desert Winds Golf Course, March 21, 2014. The unit's family day consisted of several events for both the children and adults of the family.