Pass the Ocean is normally done starting from facing couples. It ends in a 4-person wave. It is defined as a sequence of three actions:

However, in practice these actions are blended together. Note that the dancers who start on the right of each couple are going to end up in the center of the wave, holding left hands with each other. So they usually take left hands as they are starting to pass each other, and then complete the action as if they were just turning 1/4 using that hand. The dancers who start on the left of each couple usually just complete the action by walking in one continuous curved motion to become the ends of the wave, rather than doing a full Pass Thru, then turning, and then stepping to a wave as separate actions.