Two tank dives

[bketchel]

Here's an ignorant newbie question I have. When somebody says they went on a "two tank dive", say in Cozumel.....are they refering to two individual dives with single tanks, or are they diving doubles? I'm going to Cancun in April and my setup is for diving singles.....and I want to use my gear.

Bill

 

[jbd]

Here's an ignorant newbie question I have. When somebody says they went on a "two tank dive", say in Cozumel.....are they refering to two individual dives with single tanks, or are they diving doubles? I'm going to Cancun in April and my setup is for diving singles.....and I want to use my gear.

Bill

They are doing two single tank dives.

 

[The Kraken]

To expand a bit, they did two single tank dives on the same excursion. The dive boat goes out, you dive on a site, surface, do your S/I and do your second dive.

 

[HowieDean]

Usually leave the dock, motor out to first dive - Usually do a deep dive "remeber your training" - About 1 hour survace interval - Second shallow dive then back to the dock.
Usually in Cancun and Cozumel I do two of these a day - One in the morning then one in the after noon. Then a night dive.

 

[ScubaCollin]

Yep, thats how our two tank dive went in cozumel. I think we went with sand dollar. Anyway we did the harder deeper dive first. Youre going to love Mexico

 

[H2Andy]

When somebody says they went on a "two tank dive", say in
Cozumel.....are they refering to two individual dives with single tanks, or are they
diving doubles?

it's not exactly accurate, is it? as everybody said, a "two tank dive" is really
two "one tank" dives done in succession.

the usual pattern is you get on the boat, do a dive (single-tank), then
have a surface interval (usually around an hour), then do another, usually
shallower dive (also single-tank). and voila! you've done a "two tank dive."

except you haven't

 

[knotical]

So, can anyone tell us the origin of this confusing term?

 

[The Kraken]

It comes from the fact that you're going to go diving and you're taking two tanks.

 

[pete340]

So, can anyone tell us the origin of this confusing term?

I've seen it called a "two-tank charter." Two tanks per diver for the trip.

 

[H2Andy]

I've seen it called a "two-tank charter."

that actually makes sense, so of course it's not widespread usage.