As Brit says take the road up past West Bay past Katara and it's on the right hand side from the Zig Zag towers. You can't miss it there's 2 huge darlek looking towers at the start of it.

There's public parking inbetween the towers, if you can work out where you are head for Shakespeare's in Porto Arabia. Viva Bahraia is still being built and Qanat Quartier doesn't have a lot of shops. BUT it is great for scenery. PM me if you need any additional info.