heard of a wind surfer that had to be rescued on wed on the main lake, as i stated previously we only found 2 or less infront of the boat ramp which would have me beleive the main lake is around an inch, in the back of the cove we've been fishing the ice was 4'', i've found in the past if there's 10'' inches on the cove there's only 4'' on the main lake. please be safe!