Rinse all fruits with cold water. Peel the bananas and cut into 3 - 4 pieces.
Remove the peach stone and cut the pulp into 3 - 4 pieces.
Please put everything in a blender. Mix everything well until there are no more lumps. Fill into glasses immediately and garnish with 2 blackberries each (of your choice, e.g. mint, strawberries, etc.) and serve immediately.