On April 1st, a study will be conducted to determine the exact depth of the entrance pit down to the millimeter.
Several truckloads of 5 kilogram rocks will be dropped into the entrance and using an iPhone app to measure the time of impact, and another app to calculate the average depth, the depth will finally be known. Cavers will be needed to move the test samples downstream as to not affect the depth of the pit. Study will be post-lined if there is air-flow, or if the humdity is above 80 %, or if the land-owner or project manager is not appreciative of the idea.
