I do not like this! five miles out at 1500 feet is too low if the engine quits in most aircraft. It's apparently an airliner approach which is totally unnecessary in a 172. You should be close in downwind, watching the runway and looking out for traffic not "looking out for landmarks" especially the idiot with no radio or one that refuses to use one. . You should feel comfortable enough with what your flying that at 1000-1500 feet in the pattern AGL, you can land the airplane on a 2000 ft runway. If it's your first landing at a strange airport, landmarks are worthless. It's also a bad way to train. It's imperative that one learns the airplane and its limitations rather than the landmarks. It's time for a good instructor, forget the Internet.