In order to get to Clifton from the airport take the N2 southbound, following the signs to Cape Town, going past the townships and the cooling towers.
You will then see signs for the M3 to Muizenberg (to the left) or M3 to Cape Town (to the right). Continue to follow the signs to Cape Town.
The N2 merges with the M3, and shortly afterwards will split into De Waal Drive (the left two lanes) and Eastern Boulevard (the three right hand lanes). Stay in the right hand lanes.
Follow Eastern Boulevard to the end (a large intersection with signs to the Waterfront to the right) where it runs into Buitengracht Street. Go directly into Buitengracht Street, and continue straight up towards the mountain. At the 3rd intersection turn right into Somerset Road. This road will become Seapoint Main Road.
Follow this road all the way straight until you get to a set of traffic lights where the road forks into 2. Do not go straight! Take the road where it bends slightly to the right, which also becomes Regent Street, and follow it right to the end. Here you will hit a traffic circle where you turn left into Queens Road (up towards the mountain) and then take the 1st right into Victoria Road. You will now be in Bantry Bay.
Carry on along Victoria Road with the ocean on your right hand side. This road will lead you through Bantry Bay and into Clifton.
La Corniche is in a block called La Corniche. You will see a big sign on your right hand side.