How much exercise does a Shiba Inu need?

Could you please elaborate on the amount of exercise that a Shiba Inu requires on a daily basis? I understand that this breed of dog is known for its high energy levels and independent nature, so I'm curious about how much physical activity is necessary to keep them happy and healthy. Do they need multiple walks a day, or is a single longer walk sufficient? Additionally, would you recommend any specific types of exercise or activities that would be beneficial for a Shiba Inu?