DW and I sailed the Azamara Journey earlier this year on the 12 night R/T Cape Town South Africa Intensive itinerary. Spectacular, memorable trip! First w/ Azamara, won't be our last... Really enjoyed the people, ship, culture as well as the sights and experiences we had in South Africa and Mozambique. While we took ship excursions in every port of call other than Durban, we also felt comfortable to explore on our own in both Durban and Cape Town. We rented bikes in Durban and road the Golden Mile (about 13 or so kilometers round trip), and walked extensively throughout the V&A Waterfront (and even beyond a bit) in Cape Town. We practiced general safety awareness and never felt threatened while on our own. As for the other ports of call, because we had booked ship excursions, we didn't have time (for the most part) to venture out on our own. Though I would say outside of Durban, Cape Town, and Maputo, the other ports are industrial and not easy or pleasant to explore unaided. I did write a review of the trip posted here on cruise critic. I've attached it for reference. Wishing you happy sailing and fun adventures!
https://www.cruisecritic.com/memberreviews/memberreview.cfm?EntryID=696984