If your peaches and/or berries are frozen, let them defrost in a colander to drain any excess liquid.
Place peach slices, blueberries, turbinado sugar, tapioca and lemon juice into a large bowl. Mix gently to combine. Pour the mixture into a 9x13 baking dish.
In a medium bowl, combine flour, coconut, sugar, pecans, baking powder and salt. Mix well.
Cut the cold butter into cubes. Using your hands or a pastry blender, work the cubed butter into the flour mixture until the clumps are coarse and pea-sized. Add the beaten egg and mix well.
Drop the batter in clumps on top of the fruit filling. Don't worry if there are spots that are uncovered, the batter will spread a little during baking. Bake for 45 minutes, until crust is golden brown.