First take the half melon, remove the central seeds, cut it into slices and then into cubes.
Wash the cucumber, remove the ends and part of a peel, then cut it into slices.
Divide the feta into cubes.
Start composing your salads: put melon, cucumber and feta in a salad bowl.
Season with salt and oil, add a little fresh mint and serve: your salad with melon and feta is ready.