The salt geochemistry of Mars is predicted as an extrapolation of the salt geochemistry of the Dry (ice-free) Valleys in
Antarctica. It is hard to escape the implication that there must be calcium/magnesium brine lakes in the enclosed
drainage basins associated with the Northern Ice Cap. Because of the extreme cold these lakes will have acquired an ice
cover. At the interface between the ice cover and the brine, one may find a thin layer of relatively fresh water. This
might be the best and easiest place to look for Martian life.