Mc Millans Pass - Rosh Pinah - Namibie

Looking at Tracks4Africa I see a 4x4 trail (Mc Millans Pass) that leads from the D212 next to the Orange River and ends up at Namuskluft 15 km NE of Rosh Pinah.  It states that it is a guided tour and you need a permit from Namuskluft.  I trawled the internet but could not find the place to get this permit.  Can anybody help.  Can you do this on a bike, has anybody done this.  Any information is welcome.


I also need some information re Gamchab Canyon trail running south of Ais Ais (D316) to Ausenkehr (D212).  Road conditions, special spots any info welcome.

Any suggestions south from Sendelingsdrif, special spots etc

Thanks pietafrika