First of all, congratulations on becoming Open Water certified. This is a Giant Stride into a whole new and fantastic world! Dive Training Magazine isn't joking, good divers really are always learning. If you want to be good diver take courses that will help you improve in whatever area of diving that interests you and will help you be a safer, more confident diver.
Don't worry about collecting cards -- its the knowledge and experience that really counts. Take the course for the knowledge and experience you will accumulate and don't focus on the card. If you are more comfortable taking a specialty course, such as boat diving, with an instructor then pay the $$ and take the course. If you feel comfortable just diving from a boat without any special instruction other than the divemaster's briefing, then just do that. This is one of the things that makes scuba diving way more cool than any other sport -- you can take it in any direction that suits you!
For recreational diving, the only card(s) you really need are your highest certification card (OW, AOW, Rescue or MasterDiver) and your Nitrox card, if you want to dive enriched air. I also recommend DAN divers insurance (www.diversalertnetwork.org). Be sure to carry your DAN card with you on all dive excursions.
As for the zippered dive log book? My zippered log book comes in handy for keeping together some of the stuff that might get lost if I had a log book without a zipper: extra underwater pencil, solar calculator, loose sheets, etc. I make my own logbook sheets.
Dive safe!
Don't worry about collecting cards -- its the knowledge and experience that really counts. Take the course for the knowledge and experience you will accumulate and don't focus on the card. If you are more comfortable taking a specialty course, such as boat diving, with an instructor then pay the $$ and take the course. If you feel comfortable just diving from a boat without any special instruction other than the divemaster's briefing, then just do that. This is one of the things that makes scuba diving way more cool than any other sport -- you can take it in any direction that suits you!
For recreational diving, the only card(s) you really need are your highest certification card (OW, AOW, Rescue or MasterDiver) and your Nitrox card, if you want to dive enriched air. I also recommend DAN divers insurance (www.diversalertnetwork.org). Be sure to carry your DAN card with you on all dive excursions.
As for the zippered dive log book? My zippered log book comes in handy for keeping together some of the stuff that might get lost if I had a log book without a zipper: extra underwater pencil, solar calculator, loose sheets, etc. I make my own logbook sheets.
Dive safe!
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