One dive or two?

[jj1987]

Better think again. If you made it in on thirds, and don't re-calc. You will be planning the return trip on half of your remaining gas.

Howard

I'm not following what you're saying here, how is this any different than if I turn my dive at 1/3 in a cave that isn't a traverse?

Let's say if you go from manatee to sue sink on 1/3, surface with 2/3, and then turn around and complete the dive back downstream, how is this different than if you hit 1/3 5ft before you ran into open water, and turned at that point without recalculating?