We're pretty confident that if we cut into granite, we should be able to cut these structures off. The chimneys will introduce several different technical risks, as opposed to cutting a concrete box alongside a dock. The submersible has to be positioned properly, and the ship has to hold station. These structures have always had hot water pouring through them and, once we start to cut, we're not sure what's going to happen. We can get the saw blade in there and open up a new passage for the water to come out.
Hot water can start squirting out around the saw blade and back towards the vehicle.
I think we'll be far enough away that it won't be a problem, but it's something we'll be watching very carefully. There could be more growth. Some of the chimneys we're hoping to recover are inactive and if they could start up again, or if some of the active ones that we surveyed last year have continued to evolve, it could be much larger or a much different shape than what we mapped. That could pose problems. We might have to go down and resurvey some of the chimneys to get the new idea of shape and size, and then we'll take yet another trip to the bottom to recover them.