Cucumber Gazpacho with Watermelon and Mint

Name: Cucumber Gazpacho with Watermelon and Mint
Ingredients: 8 large seedless English cucumbers; 1 block silken tofu; ½ c. ice-cold water; ½ small sweet onion; 3 tbsp. lemon juice; 1 bunch fresh mint; 2 tbsp. chopped fresh cilantro; 2 tsp. salt; 1 tsp. grated fresh ginger; ½ tsp. cayenne pepper; 2 c. seeded and diced watermelon; ½ c. pumpkin seeds or pepitas; extra-virgin olive oil