1. Preheat over to 350 degrees.
2. Melt the butter in a 9x13 pan. Sprinkle the brown sugar in an even layer all over the bottom of the pan. Arrange as many pineapple slices on top of this. Dot the maraschino cherries all around.
3. In a separate bowl, blend the cake mix with the eggs, vegetable oil, and water. Pour this over the pineapple/cherry mix.
4. Bake for approximately 30 minutes, or until cake tester comes out clean. Cool for 10 minutes.
5. ** Note: One can also drain the pineapple juice as use it as a portion of the water that is used in the cake mix.