Buying a half finished $99 Chinese manufacture dive lite now re-imagined to keep
stuff dry
that can, by design, be wet.
Divers will buy anything.
I just can not fathom

that i have been diving now these 63 years and just relied on the fact that US$ are totally 100% waterproof.
I am fairly certain that in that same waterproof category fall drivers licenses and standard car keys. Seen all sorts of credit card with chips make it, the providers tell us that even if the epoxy encased chips get wet, they will dry out. Better yet, don’t take them diving.
Now I have finally seen the need for the
PADI DryFob Distinctive Specialty.
And card. And chevron.
But as to the OP:
I have widespread island experience on Roatan. I would not use a CC (most) anywhere. Cash Machines should have red X’s on them. You gotta be nuts. Avoid. Horse & Carriage, USA & Apple Pie, Thailand and Penicillin.
A debit card, or better yet several of them, with very limited values, That’s one very smart way to go. Suck ‘em dry in one shot at a cash machine. Then…consider them hacked.
I had felt no need to jump-in here for these 5 months, because….
I am spoiled. Where i go, CoCoView, they do all CC Charges in-house with management employees in charge. I take a bucket of cash, usually starting at about a minimum of $1500 for tips. CCV is so secure that the cash sits in my wallet, in my long pants, which are rolled up and stuffed in a dresser. The ‘room safe sits there forlornly unused.
This is why I watched this thread for so long without adding a response. CCV presents no such issues. My iPad sits in the dining room unmolested between meals, cameras sit on the deck rails of my room, the room key resides in the door handle, dive lockers have no doors much less a lock. That boat-hop & 40 minute ride to West End is what makes it all possible.
I just had to say something when I see the need to substitute a used-up u/w flashlight housing with the purchase of a $99 widget. Find used dive flashlight housings on eBay for all sorts of prices. All sorts…
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Look for Ikelite housings, you can find them in the old-outdated pile at your LDS for $5. Get creative, they made them for all sorts of things from the size of a pack of cigs up to a purse dog.
Or, buy an anodized $99 aluminum widget. Or follow me to CCV. No Specialty Cert required.