what ocean is east of Africa

That would be the Indian Ocean. I've spent plenty of time navigating those waters, and it's definitely the body of water you're looking for if you're heading east from the African coast. It’s pretty hard to miss when you're out there on the waves.

The currents can get a bit tricky in some spots, but it's a massive stretch of water. Always fascinates me how much territory it covers once you leave the coast behind. Definitely makes for some interesting trips, though the weather can be a real headache sometimes.