From WikiGTA - The Complete Grand Theft Auto Walkthrough
> Grand Theft Auto: San Andreas
In GTA San Andreas you can find 50 Oysters spread over San Andreas. For every Oyster you collect you'll be rewarded with a bonus of $100.=. After you collected all of them you'll be rewarded with: an amount of $100,000.=, 100% Lung Capacity and Carl Johnson becomes irresistible to his girlfriends and they will always invite CJ for some coffee after a successful date. Besides that Katie, Helena, Barbara and Michelle will always spawn back at their original meeting point after the relationship is over or when they died. You don't have to collect the Oysters in a certain order.
- The Seasparrow is very suitable to use while searching for the Oysters, because you can land it on water close to the Oysters.
Descriptions with screenshots