My friend and I will do a trip to South Africa this July. We we'll drive from Capetown over Durban to Johannesburg in 3 weeks and visiting the parks, hiking in the nature, sightseeing... being a tourist

1) Any hint for one nice long bolted climbing route, around 7 ropelengts, maximum 6a (I don't know if you use this grade-rates...), on our route, not so hard to find the route as well as the start? We've go a rented car and our tent, so we're flexible.
2) As another option, we can go bouldering (if we decide not to take all the climbing equipment with us). Any bouldering spot we definitely must have been?
3) Were can we find the topo/guidebook?
4) Any other recommendation about climbing in South-Africa? Do you need permit, are there specific rules or preoccupations...?
Thanks!
And if you want to go climbing in Belgium our Europe, just ask

Greetings!
Elyne