Sea of Thieves' 7th Anniversary celebrations are in full swing, and going on a cake hunt is just one of many things you can do to get involved in the event. Tracking down all seven hidden cakes on the waves is no easy task, with all Anniversary cake locations spread far and wide across the map with several tucked away in tricky places. Finding each cake also reveals parts of a riddle that you can piece together for an exclusive reward via the Sea of Thieves website.