how deep can you dive?

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Did a quick simulation using my Cobra software, and with the standard P0 setting, and with an AL80 and an assumed SAC rate of 0.70 (relatively high, probably typical of new divers), if you drop down to 60 ft. and stay there for 30 minutes, you have 750 psi left, which is a good rock bottom-type number to start your ascent. And you still have 21 minutes NO DEC time. As soon as you ascend you start gaining it back real fast.

So that sounds to me like a perfect limit for new divers. You can't realistically get into a decompression dive because your air supply is the limiting factor.
 
Going to have to mirror the advice of others. Follow the agency recommended limits. They are there for a reason.
 
The recommended limits are recommended for a reason. The certifying agencies want you to have a good experience, they want you to be hooked on diving. It's good advertising, and you will then come back and spend more money. ;) While this is a truism, any reputable operation wants you to be safe, and unsupervised diving beyond your training and experience is patently unsafe. For one thing, most new divers are shocked when they see how fast their air is depleted at anything below 60 feet. It is very easy to lose track of this when everything is new and exciting... time flies by and you don't realize you have a problem until it is too late.

That said, some destinations don't always give you a lot of choice. The site may have nothing to dive for above 80 or 90 feet deep. There are recommended workarounds for this. Most operators will love you if you tell them that you are a new diver and would like some oversight to start out with, especially when that first morning dive on a 2 or 3 tank resort day is usually to at least 90 feet to make it the deepest dive of the day. Diving with an experienced buddy is also a possible solution. But I would still recommend not going below 90 feet with out plenty of experience and Advanced OW training.

I dove to 120 ft during my first ocean trip, but I already had more than 60 dives in local mudholes and assisting OW and Advanced cert classes as a Divemaster. I don't recommend jumping right in like that without the training.
 
going deep is cool if there is something but what is better bull kelp or ur life dive within ur limits and stay safe. Getting an AOW is realy fun, it is pretty much 4-6 fun dives and u get experiencee in a safe enviorment. So enjoy and be safe
 

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