Thursday I was at the Sanibel causeway and was about to rig an 8.5 on my formula board when I started talking to Claus a local windsurfer. He pointed out that the wind was shifting more westerly and would be better on the east island, north side. He also said the water was to shallow for the fin on my formula board. So we moved to the east island and I rigged a 7.0 on my 118L board. The water was flat and some nice gusts were coming through. Claus also warned me about an oyster bar and a few manatees that were feeding in the area. I came across several and swerved around them. I had a good time sailing but wished I had a weed fin.