Good exersice ideas for dogs?

I own a male siberian husky who is 11mnths old and castrated. I need more ideas of getting rid of his endless amount of energy!! I run with him for 30-40min in the morning. Afternoon its a lazy walk to a cafe in town and back its roughly a 20min walk there and back home. Evening its playing in the garden fetching doing training ect. But he still has loads of energy left!!! So please any tips would be appreciated. I know what I got myself into when I got this breed and I don't mind doing it, just need more exercise ideas! Thanks in advance!!