This is the Camp Opal toilet. A hole was drilled 20 feet through the pack ice. A box was placed over the hole. A garbage bag lined the interior of the box. A hole was cut in the garbage bag to expose the 20 foot hole. A seat and lid add the finishing touch to an extremely cold toilet. Toilet paper can be seen to the right. I used the Camp Opal bathroom at 30 degrees below zero Fahrenheit.