This morning I took a man and his son fishing. We were in a cove and a guy starts pulling a pontoon plane out into the cover for take-off. I trolled over to side of the cove where some skiers were getting gear ready and we talked briefly as we trolled by waiting on the airplane to take off. That was cool, something I do not see everyday!! The airplane was not the odd thing. After the plane took off bouys started surfacing all down the cove. They just popped up from underwater! Of course we hung three rigs on them in the process before we realized what was happening. One by one they began to surface. At first we thought that it was for the ariplane to land, but then the ski boat started pulling the skier through the buoys!! LOL!!!! All my time on the water and this is the first time I have ever seen a submersible water ski course!! LOL!!!