Part Two. (Part One is here.)
Academics
When first registering for the SCUBA course, each student
was issued a textbook, accompanying workbook, cd, various stickers and swag,
and access to the online course of which completion was mandatory before the
first day of class. Char and I both managed to procrastinate much of the online
course until the day prior where we spent a majority of the day reading,
studying, quizzing and swearing. There were nine chapters, each with an online
quiz required before moving on to the next chapter and one of these chapters
was wholly dedicated to the functionality of dive tables.
Dive tables allow a diver to plan dives to safely off gas
the excess nitrogen in their blood accrued by spending time underwater at
various depths. The charts are supposedly designed to simplify these
calculations and to be intuitive in their use.
I pride myself on my
ability to pick up new material, especially anything math or formula related.
My job demands that I be able to learn new things, not so much to master them
but at least to apply the concepts in new situations under duress.
I had assumed that SCUBA would be no different.
Somehow the dive tables eluded my comprehension for several
hours. The ensuing yelling, swearing, and throwing of objects across the room did
not bode well for my ability to figure out how to breathe underwater without
killing myself.
So far, still not going well.
Into the blue
The first day of class was spent reviewing the online course
and previewing the week’s academic and pool sessions. We learned about the
horrible ways to die by descending too quickly, ascending too quickly, playing with
the local wildlife and ignoring our dive tables. I paid close attention to the
all the horrible things that happen when you rise too quickly: reverse blocks,
burst sinus blood vessels, air embolisms, and decompression sickness.
JD explains dive tables to the class in the hopes that we won't accidentally explode underwater. |
A true child of the 90s I was already familiar with
decompression sickness having recalled a particular Baywatch episode from my
youth when the Hof rescued a SCUBA diver and then spent a good portion of the
episode in a hyperbaric chamber watching flashbacks roll by. Everything I know
about saving lives I learned from Baywatch or Rescue 911.
We discussed the alcohol-like effects of nitrogen narcosis,
caused by being too deep for too long.
While this typically doesn’t happen
above 24 meters, and we weren’t planning on any dives deeper than 18 meters, it
still sounded like an easy way to put yourself in a bad situation very quickly.
We were also assigned our dive buddies. For safety and
liability reasons most husband/wife, boyfriend/girlfriend, groom/bride,
father/son, mother/daughter teams are banned. Apparently, being underwater with
minimal guidance makes for a great place to hide the body and previously hidden
subconscious desires or tendencies sometimes reveal themselves in “accidents.”
They also don’t allow students to wear a dive knife, bring
spear guns, or carry harpoons. Go figure.
We were introduced to our cadre of instructors, who would
hold our hands through the process of learning to dive and help us survive our
first open water experiences in the coming weekend.
There was JD, a retired military officer turned kept man
volunteering with ODR to teach SCUBA to first timers. He would be with us all
week through the classroom and pool sessions but miss the trip to Croatia for a
family obligation.
Popeye would be our main instructor, a former soldier and
current adventure sports guide for ODR.
As his nickname suggests, he’s
intimidating in the weight room at the local gym and seems right at home under
about 10 meters of water. I’m not sure about any actual affinity for spinach,
but he definitely has a penchant for smashing unguarded sandwiches. Whatever
you do, don’t leave your sandwich alone.
Finally, Ed was the assistant trainer, current soldier and
volunteer with ODR. He would suffer multiple failed attempts on his life by my
poor ability to wrangle another body through the water during rescue dive
training while burdened with a steel tank. Who knows how many gallons of
saltwater he must have swallowed while I foundered alongside during surface
tows. Good sport, really. Though, the final attempt on his life would come from
another diver tagging along with our small crew for the weekend during one of
our last dives.
We finished off the first evening at a local dive shop,
procuring the personal gear to augment the gear issued to us by the Outdoor
Recreation MWR shop hosting the SCUBA course.
The second night of class was our first night in the pool,
and where we demonstrated our comfort in the water with basic swim skills. My
own history with swimming is long and sordid and not something I will delve too
deeply into here except to say, I was intimidated.
We settled our gear in buddy teams and got our first of many
safety briefs from the instructors. They demonstrated a few acceptable swim
strokes and lined us up alongside one end of the pool with a simple
instruction: swim to the other side and back.
No goggles, no noseplug.
I hesitated for several seconds before pushing off, thinking
about the water that was sure to shoot right up my nose, the fact that I could
barely see without my goggles under the water, and how embarrassing this whole
adventure was going to be after everyone saw me swim half the length of the
pool, diagonally, before sputtering and coughing until someone pulled me out to
sit soggy and crying on the sidelines for the rest of the evening.
Instead, I managed to keep most of the water out and could
even, though just barely, follow the black line along the bottom of the pool to
the other side. Once there I struggled to resist jumping out and doing a
victory dance before swimming back.
The rest of the skills testing passed relatively uneventful.
Even the 10 minutes of treading water was only approaching dramatic once the
Taco Bell I had unwisely consumed a couple hours before began an apparently
eventful journey through my digestive tract. Each prospective burp became a
roll of the dice as to just what was going to come out, and no one wants to be
the guy puking in the pool during SCUBA class.
We spent the rest of the evening with fins and snorkel masks
learning to surface dive, swim with fins on, and basic rescue surface tows.
"Shark Bait" ready to try breathing underwater for the first time. |
The basic skills training was simple and confidence
building. I began looking forward to the weekend of open water dives for the
first time. That is, until I my buddy started breaking for the surface every
time something didn’t go quite right. A little water leaked into his mask, poof,
he’s gone. Trouble putting his regulator back into his mouth, he’s up, up, and
away. Couldn’t equalize the pressure in his ears, at 12 feet in a swimming
pool, and the next thing I knew I was staring up at the bottoms of his fins.
No comments:
Post a Comment