Preheat oven to 350.
Rinse blueberries well, then place them in the 2-quart baking dish. Sprinkle cinnamon on top.
Mix almond flour with sea salt and baking soda in a large bowl, until well mixed. Stir in the unsweetened shredded coconut and walnuts.
Melt the coconut oil, in a small pan over low heat, then add the honey to just barely melt the honey enough to mix in.
Stir the melted mixture into the almond flour mixture until well-blended, then crumble the almond flour mixture over the blueberries.
Bake for about 30 minutes until topping is golden brown.
Cut into squares to serve!