Not so long ago you could carry your car keys in your PFD pocket and not have to worry about things like remote central locking, immobiliser coding or anything else. If your key got wet it didn’t really matter. Things are different now.
You therefore have three viable options:
1. Hide the keys on, in, under or near the car. Super risky and the insurance company won’t like it.
2. Carry them in a nice waterproof case in your boat. Good cases are easy to find and it’s easy to store them in your boat. However lose the boat and you’ll lose the keys.
3. Carry them with you.
After finally finding a low bulk waterproof solution that would allow me to carry my keys within my PFD I have went with option 3.
“aLOKSAK® bags are resealable element-proof storage bags featuring a hermetic seal. That means absolutely no water, air, dust or humidity permeates the closure. They are designed for a wide range of applications and environments. The transparent bags are flexible and puncture resistant. They come in multiple sizes and can be sealed over and over again. The unique and patented materials, closure systems and manufacturing techniques used to fabricate the aLOKSAK meet the most rigorous testing standards.”
The bags are used by the US navy and have been tested down to silly depths (60m). The image above shows quite a few keys within the aLOKSAK. To be totally safe and to ensure that I haven’t punctured the first bag with my keys I always use a second bag, just in case.
You do have to be careful when sealing the bag to make sure that you have expelled some air and that the seal has been correctly used. I have been using the same system (but larger bags) to store my first aid kit for the last few years and despite seeing some really rough treatment the bag is holding up really well.