Popeye
Contributor
BEM once bubbled...
My regular buddy and I used the thumb-up ascend signal to end the dive, but there are issues with this. If we are away from the boat or shore, it could mean, go shallower not end the dive. And, if we wanted to end the dive, we would point back to the boat or entry point and make the swim signal (two fingers mimicking kicking legs.) But this could also mean, lets head back for - whatever reason, and would require more signals to indicate what my buddy wanted to do. Another way is to write End Dive on a slate, but don't always carry them.
How do you indicate to end the dive (other than the usual use one-third of air, then return or pre-determined point)?
For me, thumbs up ends the dive, always without question.
If solo ascents are cool, that's pre-arranged.
If I'm coming up on deco, I make a "T" with my hands, show fingers for how many minutes.
If I wanna go upwards, or anywhere, I use two fingers wiggling to signal walking, then point to where I'm going.