Use a sharp knife and cutting board to cut the watermelon into 1-inch cubes, then place them into a large mixing bowl.
4 cups watermelon chunks
Repeat the process to cut the pineapple into similar-sized chunks and add them to the bowl with the watermelon.
1 cup pineapple chunks
Gently toss the fruit with a spoon or salad tongs until evenly mixed, ensuring the juices combine for a colorful presentation.
Optional: refrigerate the salad for 10 minutes to enhance the cooling effect and allow flavors to meld.
Serve the salad chilled in individual bowls, with a visually appealing mix of bright red and yellow fruit pieces.