Lockers at Sea Trek Helmet Dive?

[Csnorrco]

We are booked to do the Sea Trek Helmet Dive through Carnival. Do they have lockers there where you can lock up your valuables (cash, credit cards, ID,etc) or do we need to worry about getting waterproof bags or packs for these? If they do have lockers....how secure are they? Do you get a combination...or take a key with you when you go diving? I'm a little worried about waterproof bags NOT being entirely waterproof and ruining our passports/Id cards, etc....but also worried about leaving these valuables on shore when we are underwater!!! Any info is appreciated!

[Csnorrco]

Bumping...Anyone?