Worlds collide in this East African paradise

When people picture travelling in Africa, they might imagine themselves trekking over vast swaths of desert and sandy scrubland, setting out on a safari through savannahs and velds, or venturing deep into dense jungle. Perhaps they won’t be thinking of pristine white sand beaches, hammocks beneath banana palms, and snorkeling through some of the world’s best-preserved coral reefs. Perhaps they won’t be thinking of Zanzibar.