The logo is for a USA based tour operator website selling travel packages for visitors going on Safari in Africa. The Safari packages tend to include a land and a sea (ocean) component. On the land component visitors will be able to see the big 5 (lion, leopard, rhino, buffalo and elephant). On the sea component (mostly aimed at scuba diving) visitors will be able to see sharks, whales, dolphin, turtles etc.
As the focus is on Africa, it might (be is not necessary) to include the African continent (and/or other African related icons) in the design.
On the one hand, the following design principals are favored: "less is more", simple, clean, elegant, classy. On the other hand, if done well, this logo may lend itself towards using some kind of symbol representing the African outdoors and sea components.