
Too right they are!! They are a hound, and the breed standard says that they should be "capable of great endurance, with a fair amount of speed".
Like most active breeds of this size, the amount of exercise given should be built up gradually, starting from two or three 5-minute walks a day at 15 weeks. At six months or so two twenty-minute walks (with some free-running) will be needed, then building up from there, so that by the time they are about 2 years old they should be almost untireable.