Its been a good handshake and hollar since you asked, but based on what I recall from a few seasons back- they restrict access to renting sites and utilizing showers during the last three months of the year. Typical of most places in these parts. Now, that isn't to say you run through for a day trip. You find they still allow for an open gate and access down to the lake even in these chillier months.
Pretty sure its open year round but call just to be sure
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