Place the oats, chai seeds and almonds in a large bowl. Pour of 2 cups (500ml) of the almond milk and mix well to combine. Cover and refrigerate for 2-3 hours.
Stir through the remaining almond milk and half of the yoghurt.
Spoon the bircher into bowls and top with the remaining yoghurt, blueberries and agave syrup (or honey) to serve.