There are several reasons for towing when sea kayaking:
In an emergency situation the best towing method is the one that gets the paddler away from the source of danger quickly.
About Towing Single line tow Assisted tow 'V' Tow Safety Common Mistakes
An assisted tow may be necessary when a paddler:
The supporting paddler usually rafts up tightly behind the person being towed. Edging helps keep the kayaks together.