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Your bottom time ends when you start to make a
direct ascent to the surface.
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It's important that you're able to control your
ascent because dive tables are based on an
ascent rate of no faster than 30 feet per minute.
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There are a few things you need to adjust in
order to moderate your ascent.
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For example, the air inside your BC starts to
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Also gas trapped in your exposure protection
will expand and increase your ascent rate.
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You need to stay with your dive buddies and
everyone in the group should ascend at the
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Before you make a controlled ascent there are a
few things you need to do.
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Check with your dive buddies and make sure
they are ready to leave bottom.
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check your cylinder pressure and then check
your dive time so you know when your dive ends.
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Hand positions are very important during a
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All divers should always have their right hand
with a closed fist above their head.
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The closed fist protects your fingers.
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The fist above your head protects your head
from overhead obstructions.
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All divers always look above themselves and
their dive buddies for overhead obstructions
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and we can only ascend as fast as the slowest
diver in the buddy team.
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When the divers get to the surface, the first thing
they do is inflate their BCs so that they're
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