An interpersonal towing system deploys two or more harnesses each worn by an individual, each harness connected to opposing sides of a highly elastic towline that is protected by a durable fabric cover. The harnesses are configured for detachable connection to the towline via a pair of loops or rings fixed at upper pelvis level at both the front and rear of each harness. The system is suitable for either person assisting the other to traverse difficult terrain with great efficiency yet without damaging the highly elastic towline.