There are 137 routes at the crag not counting toprope problems, so lots to do and still more virgin lines waiting (yes we left some for the rest of you all!
The DuToits mountain club hut is there for members and guests to stay at. Unfortunately the campsite at the Lodge was closed down many years ago although bungalows can be rented which may be viable for a large group. But quite honestly the place is less than an hour from CT and definitely viable for day visits.
If you go this time of year I strongly recommend getting up to the crags at crack of dawn, climbing until midday when the sun hits the rock and then blowing climbing off for the day and going swimming in one of the awesome pools along the river. The place cooks on summer afternoons especially if there is little wind, its not called Hellfire for nothing!
PS Dont forget you need a permit from Cape Nature to climb and to swim (one usually books for a hike on the river you want to swim in [although clandestine cool off dips have been known to happen!])
PPS And I almost forgot! Best of all there is a pub at the Lodge for frostees after a hard days work at the crag, what more could one want!