My oldest son, who's in college, just learned that he was selected for a 9-week summer fellowship in Accra. I have never been to Africa at all, but I'm confident that some of you have and can give us some pointers. What precautions should he take? What places/activities should he avoid? (those are my questions). What are the must-sees/must-dos? Where else in the region should he travel? Any good books that he should read? (He's getting the Lonely Planet).

Thanks, JoAnne (nervous mom in sunny Silicon Valley, CA)