|Donut Secret 1|
|World location||Donut Plains|
|Enemies||Cheep Cheep, Blurp, Rip Van Fish|
|Previous level||Donut Plains 1|
|Next level||Donut Secret House, Donut Ghost House|
|Game(s)||Super Mario World|
Donut Secret 1 is a level to lead a secret. It is an underwater level, and the first secret level. It also first introduces Rip Van Fishes and Blurps. Its secret leads to a Ghost House, as its boss is the Big Boo. The key is under blocks.