In reply to James Malloch:
> Heading to rocklands tomorrow and it could be useful to have directions from the airport...
Take the N2 towards Cape Town. When you get close to the mountain look for the N7 towards Malmesbury, follow this all the way to Clanwilliam, turn right on the R364 (signposted Calvinia, I think) up to the top of the pass, stop at Kliphuis.
There's a short cut via Bellville and Durbanville but probably no quicker if you aren't familiar with it.