The stories about a lot of Boats being stolen are true. Several people have had their boats stolen this month and just last night security chased off a guy on my dock messing with the lock and cable.
The North part of the island is just easy picking for Boat Thieves. The technique seems to be to get the boat away from the dock and remove the motor. They cut cables and locks quickly and do it in the dark of early morning time.
I highly suspect its coming from the Mexican side. Not sure what to do about it. You can lock it,light it, put an alarm on it and a GPS finder and they still will take it.

White Sands Dive Shop
https://whitesandsdiveshop.com/