Dont know about July but you can do a world cruise sector in January. P&O Aurora leaves for Capetown on 11 Jan, 17 nights incl overnight flight back but you can extend your stay in SA.
Fred. Olsen's "Black Watch" sailing on its world cruise from Southampton on January 06, 2009 calls at Durban and Capetown in mid March. You can book the sector from Sydney (Australia) to Capetown as a fly-cruise. The departure date from the UK is 20 February. See the Fred. Olsen 2009/2010 brochure or visit their website for fuller details.
Princess Cruises - Crown Princess - 4 Apr 2017 - 5nts
Rome (Civitavecchia) : Kotor : Corfu : Rome (Civitavecchia)
Now from £489pp
View No Fly Cruises from Southampton >>
Click here to see offer
Princess - Pacific Princess - 26 February 2017 - 22nts
UK : Hong Kong : Sanya : Singapore : Phuket : Cochin : Mumbai : Dubai : UK
Now from £1699pp
Click to View Info Page>>
Princess - Pacific Princess - 07 February 2017 - 24nts
UK : Sydney : Papua New Guinea : Yap : Koahsiung : Hong Kong : UK
Now from £1999pp
Click Here To View More Princess Cruise Deals >>