I'm new to T-Bird and I was there last week and went into a cove and there were these white buoys that said " closed area " . Whats that about ? Thats where I wanted to fish. I thought they were just no-wake bouys and fished the bank. Then I got close enough to read and it was a closed area I was fishing. Dang. Those were good pockets off a secondary point. Why is that part of the lake closed ?