In oil well drilling, there is a concept referred to as “Drilling with Casing”; a process where the tubular that is utilized to drill the hole is also used to case the resultant borehole without the removal of the tubular from the borehole.  This method is proposed for SALE access, where coiled tubing would be used to drill through the ice with hot water to a point close to SALE.  The size of the borehole would only be of sufficient clearance to allow passage of the tubular downward.  When the tubular was in position, then the hot water inside the tubular would be displaced with a non-freezing fluid.  The water around the tubular would gradually freeze, but the incompressibility of the fluid inside would prevent the tubular from collapsing as the water froze.  This tubular could be placed quickly and used as a permanent conduit to the lake.