Cantaloupe soup with blueberry papaya relish

For relish:
1 ripe papaya, peeled and cut into 1/2-inch dice
1/2 cup fresh blueberries
1 tbsp fresh lemon juice
2 tbsp fresh mint chiffonade
For soup:
1 lrg ripe cantaloupe, peeled and coarsely chopped
2 tbsp fresh lime juice
1 tbsp honey

1. Relish: Combine the papaya, blueberries, lemon juice, and mint in a medium bowl. Let sit at room temperature for 1 hour.
2. Soup: Place the cantaloupe, lime juice, and honey in a blender and blend until smooth. Ladle the soup into bowls, add a splash of seltzer, and top with the relish.