Accessed from the Remarkables Ski Area, there are quality summer rock routes on the buttresses and faces surrounding the lake, as well as some ice and mixed routes in winter.
Walk up alongside the Alta chair then follow your nose around the LHS or RHS of the lake to the base of the climbs.
In summer, you can orient yourself to the main Alta slab rock routes by looking for the clean streak of rock on the upper pitch of the route 'Fat Lady Sings at the Circus.'
In winter, 'Altered States' is the obvious water ice flow below the DB Eh buttress of Double Cone. The frozen lake can often be crossed safely. Be warned: Alta ice is east facing and gets plenty of early sun. Small to medium avalanches directly down the line of 'Altered States' are very common after fresh snow or on sunny days.