Was at Orient a few weeks ago - no Sargassum in the water or on the beach the day we were there, but have seen photos showing a small amount on the beach a few days ago - though most of the places that rent chairs rake it away in the morning. The Les Mardis de Grand Case is free to go - so in a way it is worth it. We didn't stay for the band, but there are numerous vendors lining the streets, some with food, some jewelry , and art items, and had a pretty good crowd the night we were there. If you want to eat at a restaurant, you would want to make reservations ahead of time.