Combine coconut and walnuts in a medium bowl. Reserve 1/2 cup mixture; set aside. Add flour, baking powder and salt to remaining coconut-walnut mixture.
Beat corn syrup and butter in a large bowl until smooth. Blend in eggs, bananas and vanilla. Stir in flour mixture just until moistened. Pour into a greased and floured 9 x 5-inch OR 8-1/2 x 4-1/2-inch loaf pan. Top batter with reserved coconut-walnut mixture.
Bake 9 x 5-inch loaf 55 to 60 minutes OR 8-1/2 x 4-1/2-inch loaf 60 to 65 minutes, or until toothpick inserted in center comes out clean. Cool in pan 10 minutes. Remove from pan; cool completely on wire rack before slicing.
NOTE: Bread slices easiest the day after baking or when refrigerated.
