Lady Bird & female houseguests fly to San Antonio for Hemis Fair; lunch with LBJ & male houseguests at La Paloma del Rio restaurant on the Riverwalk; back to LBJ Ranch; nap; LBJ & George Mahon are sunburned; Coca Cola Cove for boating & swimming; Lady Bird has nice comments about George Mahon & Alan Boyd; helicopter to the Haywood Ranch; fish fry; back to LBJ Ranch; Lynda Robb stayed back in Washington, D.C.