Eventually, you will need one or more other people to lay tracks for you. You should also invest in a few good books on the topic. In early training, only a couple of acres are necessary. For advanced tracks, twenty acres or more may be required to adequately challenge the dog. Just as importantly, you need to be in reasonably good physical condition yourself.
Tracking requires a great deal of walking in fields and woods.
You may need to to walk up steep hills, hop over ditches, and climb over fences. To lay an advanced track and run it later may require you to walk well over a mile in rough terrain. In short, tracking entails hiking. Of course, it's great fun and will prolong your life. Any dog can track.