Forodhani Gardens is one of the biggest tourist attractions on Stone Island (Stone Island is the capital of Unguja - the biggest island in the archipelago that is Zanzibar. Unguja is also referred to as Zanzibar Island.)
People (both tourist and local Zanzibaris alike) gather at Forodhani Gardens at night to feast on a dizzying array of meat and seafood. You pick what you want and the vendor roasts its for you. Eating at FG is a strictly no-frills affair, with food served in disposable paper plates. You sit at any one of the wooden tables and benches, with cats scurrying around your feet waiting for scraps. I used to hate cats. I've gotten over that now - albeit firmly in the 'dog person' camp - but it was still slightly disconcerting for me to have so many cats in such close proximity.
The food was good though a bit of a let-down. I suppose that can happen when your expectations have been built sky-high by many excellent reviews of the food. For an island so famous for its spices, I thought more should have been used in the food.
Forodhani is great for people watching, especially seeing young Zanzibari men practice English with young female tourists.