Some of the sources used for this compilation include:
https://thekayakers.com/real-sea-kayaks/#.WyPa_YgvzIU
http://www.kayarchy.com/html/01equipment/010otherkayaks.htm
ttps://www.thoughtco.com/introduction-to-sup-2555699
https://www.canoekayak.com/start-paddling/sea-paddling-safety-101/
42 Sanctuary of the Great Lakes