50314222_bbies___The_Sims_Freeplay_Wiki__Prizes
[Name] Diving Adults Pre-teens Teens [Levels] 1.Oafish 2.Maladroit 3.Stage Diver 4.Intermediate 5.Flipper 6.Master [Description] For this hobby, you will need the Swimming Center (unlocked with the It's all Going Swimmingly quest at level 13.) Once your Sim is there, tap the diving board and select one of the options. When your Sim is done a '!' will appear above their head and they will complete a final dive to receive a medal. [Prizes] 
Diving Boards for Pools at home. Collect all diving medals. Lifeguard Chair for home. Collect all diving medals a second time.
Hobbies - The Sims Freeplay Wiki
Prizes