Today an adventure into tetrahedron park begins. When we traveled to the sunshine coast a week ago we sort of knew we would be going hiking a week later but didn’t really think it all through. Specifically, we failed to realize we would need hiking gear. Instead I brought a laptop computer. I also threw in some rugged clothes and boots to help Doug and Gail with yard work. That is now the hiking gear – along with other equipment on loan from the ’70s time capsule in their shed.