Using a sharp chef's knife and cutting board, dice the watermelon into small cubes, approximately 1-inch in size, and place them into a mixing bowl.
1 cup strawberries, hulled
Hull the strawberries and cut them in halves or quarters depending on size; add to the bowl with the watermelon.
1 cup strawberries, hulled
Peel the cucumber using a vegetable peeler or a paring knife, then chop into smaller pieces and add to the bowl.
1 cup strawberries, hulled
Pick fresh mint leaves and add half to the blender along with the fruit and cucumber. Blend on high until smooth and well combined, about 30-45 seconds.
1 cup strawberries, hulled
Pour the blended mixture through a fine mesh strainer into a bowl or pitcher, pressing gently with a spatula to remove pulp and obtain a smooth soup.
Stir in lime juice, a pinch of salt, and adjust seasoning to taste. Chill the gazpacho in the refrigerator for at least 30 minutes before serving. Before serving, optionally drizzle with a little olive oil and garnish with remaining mint leaves.
1 cup strawberries, hulled