I am going on the Niihau dive with Bubbles Below (they are the only ones that dive there on Saturday.) I am a fairly competent diver but I have only done 3? boat dives. Is there anything I should know about this particular trip that I can't read in the boat diver specialty book? Do I need to bring extra stuff like food and drink? Is there any gear that I should bring or leave behind? I get cold diving here in Hilo. Do I need to bring my 5mm or is my 2/3mm with vest and hood enough? I am bringing my gear rather than renting. I am on a really tight budget.