Slice the strawberries. Mix them up with the other berries.
Spray a large bowl or two smaller bowls with cooking spray. Put the berries in and try to arrange them as far up the sides as possible. Set aside.
In a large bowl, mix together the gelatin and the sugar.
Boil the water and whisk it into the gelatin and sugar until the gelatin is dissolved.
Add the ginger ale and stir to combine.
Carefully pour the gingerale-gelatin mixture into the prepared bowls of berries.
Refrigerate for 3-4 hours until firmly set.