[harryhoratio]

My take on the rules especially in restricted visibility is that all vessels must be extra cautious and take all steps to avoid collision - period. Both are at fault however since the fishing boat was by admission not keeping a lookout it bears it's share of the responsibility which does not relieve the catamaran from taking whatever action needed to avoid collision. The essence of the rules are - don't collide no matter who has rights of way or any other consideration and if you do then you most likely will bear some responsibility.