PRESS PHOTOS BY DONNA GEWERTZGavin Marhefka, of Whitehall Township, and his mother, Kayla, pick up trash during the Lehigh Valley with Littles cleanup of Hokendauqua Park during the group’s Earth Day activities. The organization was founded to assist families in locating family-friendly activities suitable for small children throughout the Lehigh Valley. The free event, held April 22, was designed to promote stewardship for young children to have a hand in taking care of their environment and the world they live in.