Camp El Tesoro, Helping kids explore, laugh and grow for more than 75 years! A traditional overnight camp experience helps build lifelong friendships, treasured memories and teaches children of all ages new skills and increases self-confidence. El Tesoro provides a range of summer camp options from a three-day session, perfect for a younger camper, to a 13-day session and a number of options in between. Located on the Brazos River near Granbury, Texas, El Tesoro offers a variety of challenging activities for each skill level. From hiking, canoeing and horseback riding to swimming, a new high ropes challenge course and arts and crafts, campers enjoy a full spectrum of activities designed to build respect - for themselves, others and the environment.