Well... what we have done is, if you are just locking up your pontoon boat (single), we have 15 ft cables (plastic coated) that we put through the oar lock holders (or any welded loop area) and then around a tree... if we are going to lock 3-4 boats up them we just use 2-3 cables and lock them all together...

Tight Line and Shoot Straight beer
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"Many go fishing all their lives without knowing that it is not fish they are after." - Thoreau

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