Place juices, sea salt and agar flakes in a pot. Bring to a boil. Stir occasionally to dissolve the flakes. When it comes to a boil, reduce the flame to low and simmer 3 to 4 minutes.
Place the sliced fruit and berries in a serving dish. Pour the hot juice over it. Set aside on the counter or a cool place until gelled, about 1 to 1 1/2 hours. Slice into squares or spoon out and serve.
Per serving - 113 calories, 0 g fat (2% calories from fat), 1 g protein, 28 g carbohydrate, 1 g fiber, 0 mg cholesterol, 48 mg sodium