Preheat oven to 300 degrees.
Combine oats, coconut, almonds, pecans and pumpkin seeds or sunflower seeds in a large bowl. Combine brown sugar, syrup, water and oil in a medium bowl or large measuring cup and pour over the oat mixture; stir until well combined. Spread the mixture into a large rimmed baking sheet.
Bake for about 45 minutes, stirring occasionally, until golden brown and beginning to crisp. Stir in cranberries and raisins. Let cool completely before storing. Serving size is 1/2 cup.