Place the apples and blueberries in a large bowl. Add the cinnamon, flour, and maple syrup, and stir to coat. Place the filling in a 9 x 13 inch pan.
Using the same large bowl, prepare the crisp topping by mixing together the oats, flour, shredded coconut, cinnamon, and salt. Then stir in the pure maple syrup and coconut oil. Use a spoon to add dollops of the topping to the fruit mixture.
Place the pan in the oven and bake for 45 minutes, or until the topping is brown and the apples are softened. If the apples aren’t soft enough, cover the pan with foil and bake for an additional 5 or 10 minutes.
Cool on a wire rack. Serve warm or cold. The leftovers can be refrigerated for several days.