Scubaclub Cozumel has a house reef where you can make a night dive or two. I'm not a fan of drift diving, so I skipped some of the boat dives in favor of shore diving while I was there.
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Thanks for the input I have altered my thinking and reduced it to 2 am and 2 afternoon dives which I think will also give me some time to enjoy Cozumel while I am there as well.
I have defiantly considered that I talked to the dive op and I will have 24 or 25 hours between the time I get out of the water and get on the plane. I think 4 dives a day will be plenty after the input I am getting here now I am just looking forward to the vacation and enjoying the area.Glad to hear we won't be reading about another dive accident. 4 dives per day is certainly doable (not for me but many others do it). With 12 dives in 3 days try to leave yourself at least 18 hours from your last dive until you fly. Remember, your last surfacing represents your last decompression but when you get on a plane you experience another. Air pressure at sea level is 14.7 PSI and at cruise altitude is between 11 and 12 PSI. When you're on the plane take an empty water bottle and screw the top on at cruise altitude and watch it shrink as you descend to land. Divers can be OK at sea level but if they get on a plane too soon the potential to fizz again presents if they've pushed it to the limits on their DC's. DC's don't consider a subsequent flight... Instead some just start a 24 hour time to fly countdown.
Do they do 4 boat dives a day though? I can’t remember from when I was diving with dressel in May. There was a lot of waiting around/filling 2 boats etc. I don’t think 4 dives a day was the norm + night dive..