It is extremely difficult for any of us to tell you what the seaweed will be like when you're there (or on ANY given day, for that matter). It changes from day to day. When we were there in June, one day on Orient was bad for seaweed and within two days, it was minimal. Hard to say. Just go and enjoy. It should not ruin your vacation.
Robin & Ed
One’s destination is never a place, but a new way of seeing things. - Henry Miller