John Drewry wrote in 2000: “The Granny Knot” and “The Ocean Plait” are virtually the same dance, but in different tempi. I may withdraw one when I find out which is more popular with the dancers."
Greenburn Book 3
shows the following dedication: Another KNOT for Morland! This is similar to the Granny Knot but in quick tempo.
In addition, John Drewry notes: An Ocean Plait is a very complicated knot made from a single length of rope. (See “Knots and Ropework” by Eric C. Fry. (David and Charles))