1. Combine 1 cup honeydew melon, 1/4 cup loosely packed fresh mint leaves, fresh lime juice, and honey in a blender; process until smooth. Add remaining melon and salt; process until smooth. Transfer melon mixture to a bowl; cover and chill at least 1 hour. Ladle about 3/4 cup soup into each of 6 bowls; garnish each serving with 1 thin lime slice and 1 thinly sliced mint leaf, if desired.