  We revisit the problem of determining the Arctic curve in the six-vertex
model with domain wall boundary conditions. We describe an alternative method,
by which we recover the previously conjectured analytic expression in the
square domain. We adapt the method to work for a large class of domains, and
for other models exhibiting limit shape phenomena. We study in detail some
examples, and derive, in particular, the Arctic curve of the six-vertex model
in a triangoloid domain at the ice-point.
