Spice, I feel your pain. I'm the chair of the lake committee in my neighborhood, and I've got a 100 acre lake to "manage".
We've also had to add the cost of replacement locks to the budget as people keep cutting the lock to the boat ramp.
wowens1604 -
Do you have the funds to install one or more trail cameras? You might find getting the vehicle and license plate to those cutting your lock/cable and trespassing is worth the financial investment.
Even installing what appears to be working (but really are broken) trail cameras in visible areas with a signs placed the area is monitored will deter some would be vandals and trespassers. You can find broken trail cameras on Ebay that LOOK to be working trail cameras.