Preheat the oven to 400 degrees. Drizzle or brush the bread slices with olive oil and place them on a large baking pan. Sprinkle with sea salt and bake for about 6-8 minutes or until crisp and golden brown.
Meanwhile, in a small bowl, toss together the cantaloupe, chopped mint and a pinch of sea salt. Toss to distribute mint and salt. Set aside.
Remove from the oven and top each bread slice with a piece of brie. Scoop about a tablespoon of diced cantaloupe onto each piece of bread. Drizzle each piece with honey and garnish with extra mint before serving, if desired.