Dangerous Waters

Although the weather forecast on New Year’s Day called for cloudy skies, the sun seemed to be making a game effort in the mid-morning so I thought I would celebrate the first day of 2017 photographing Great Falls National Park. I was thinking about a waterfall image with a nice feathery look, using a slower shutter speed on the water. An example of the concept is shown below, taken a week earlier.

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Great Falls of the Potomac (December 25th, 2016)

(Nikon D810 on tripod with 70-200mm f/2.8 @ 150mm and ND filter; exp @ 1.6 secs, ISO 50)

The park is named for the Great Falls of the Potomac River, about 15 miles north of Washington, DC . It is a spectacular location for landscape photography but also is one of the most dangerous whitewater locations in the eastern U.S.  Since 1975, about 30 people have died there and only expert boaters should contemplate putting into this section of the river.

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Kayak portage across the”Flake”

Just as I arrived, I noticed several kayakers lugging their boats over the rocky island known as the Flake towards a put-in point for a run over the falls.  I sprinted for Overlook #1 which provides a decent view of all three routes over the falls.  For those who are not familiar with the level of these rapids, here are some excerpts from American Whitewater:

“Great Falls of the Potomac River is a major set of rapids located about 15 miles upstream of Washington, DC. The main Falls lines drop fifty feet in one-tenth of a mile, creating a Class V+ set of waterfalls.” (Note: Class VI is the most dangerous; anything more dangerous is considered unrunnable).

More scary information about the dangers of this kayak run can be found here: Scroll down to the several listings for Great Falls.

As I watched the boaters pick their way across the Flake, I surveyed the river trying to guess from the flow of the water which route they would choose.  The level is precisely measured by a hydrology station upriver and an online site provides current information which should dictate the choice.   A difference of 6 inches can make a big difference.

It looked to me as if two of the lines, the one closest to the Virginia shore (the Spout) and the one closest the Maryland shore (Maryland Lines) were  OK but the center line seemed too low to be safe. Two other boaters were already in the water near the put-in on the Maryland side so I concentrated on them.

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Approaching the final rapid on the Maryland Line

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A few seconds later, so far, so good

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Almost through

These two made the run nicely and paddled over to the base of the Flake and began the tricky portage back upstream.  It was then that I noticed two other boaters who seemed to be aiming for a run down the centerline, also known as “The Fingers” because there are five 25-foot vertical chutes to choose from.  The Fingers can be seen in the photo at the start of the post; it was taken from Outlook #3.

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Approaching the “Fingers”

The problem is that the wrong choice can be fatal.  I made an online check on the water level which showed it was about 1 inch below the level considered safe for that route. So the pair were pushing their luck just a bit.  Anyway, they made it OK, although I couldn’t see the finish from my vantage point. (See photo below)

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Running the Middle Finger (the correct choice)

No sooner has they completed their descents when four more kayakers moved into position for a run down the Virginia line.  This run finishes with “The Spout,” a spectacular 25-foot drop right in front of my position. Now I was getting really excited.

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In position for the Virginia Line, about 100 meters (and 3 rapids) from the Spout

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Through the 3 rapids and assessing the Spout

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Perfect Position!

All four made the run without encountering trouble and the small crowd with me at the overlook cheered loudly after each one resurfaced above the foam.  And the boaters themselves were proud of their accomplishment, judging from the energetic fist pumps made at the conclusion of their descents.

Of all the times I have been to the park and have been lucky enough to see kayakers, I have never seen runs made on all three of the major routes on the same day.  It was truly a special way to start the new year.

4th of July Waterworks!

One of the less well known benefits of living in the Washington, DC area is that it has some of the best whitewater action in the world. For those who are skeptical, here is a link to an article in today’s Washington Post. And the most difficult stretch of that action is the Great Falls of the Potomac which happens to be about 3 miles from my home. I’ve been following the action for seven years now and it is always exciting. It’s pretty cool to go to an Olympic level competition, get a prime viewing spot, and not pay a dime. So that’s where I was yesterday, photographing the boaters as they practiced for a competition that was held today. Here are a few shots from the practice session.

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The water level was perfect for the center line which is perfectly located for viewing from two of the overlooks in Great Falls National Park on the Virginia side and pretty good viewing from the overlook from the Park on the Maryland side. It is also a dangerous route over the falls. A competitor was killed last year when she made an error during a practice run causing the event to be canceled. It should be noted, however, that this was an extremely rare incident; these participants are all highly skilled and numerous rescue capabilities are in position for these events. The image above was taken from the water level not normally accessible to non-boaters. I was about 100 meters from the falls. (Technical data (Nikon D800E handheld with a 70-200mm f/2.8 lens extended to 200mm; Exposure was 1/200th sec. @ f/8, ISO 400)

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This is a tight crop from the same image, so it shows the value of having an extremely sharp lens. The competition is a timed course so each competitor has to negotiate a series of cascades, finishing with this 20-foot (plus) drop and then making a sprint a short distance to a finish line (out of sight to the left). There are two runs and the boater in each class with the lowest cumulative time is the winner.

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This was taken from Overlook 2 in Great Falls National Park (Virginia side). It is about the same distance from the drop as the location down at water level. I went back this morning for the actual competition and used an old Nikon 80-400mm zoom lens. It’s been a while since I have used it, since that extra three pounds is no fun to carry in one’s back-pack. But it seemed this would be a good comparison test on sharpness. Because of its weight, I used a tripod. And as it turned out, the images taken with the 70-200 model at maximum extension are sharper than those of the 80-400 at its maximum length. This despite the fact that the images from the 70-200 have to be enlarged twice as much to match the size of objects in images from the bigger lens.
But I digress. This is a post about kayaks and the Great Falls of the Potomac. So let’s wrap it up with two images taken two years ago during another practice day.

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As noted above, the water level of the Potomac River dictates where the race will be run. The difference can be quite small. For example, the center line (first three images) is used when the water measures between 3.3-3.8 feet at a specified measuring location. That is a range of about 6 inches. There are three other routes, depending on the level measured on race day. This image was taken from Overlook 1 on the Virginia side of the park. It is an amazingly exciting viewpoint because spectators are less than 100 feet from the boater when she/he goes over. Unfortunately, there is very little room there and for a photographer with a tripod, there is literally only one optimal spot. And the Spout cannot be seen at all from any of the other overlooks. But I got lucky and saw a few boaters practicing when the water levels called for this route. Same camera-lens combination as above, exposure was 1/1,000th sec. @ f/5. This is a fairly tight crop, mainly because there was a lot of uninteresting foreground in the frame.

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But there were two other boaters practicing together and the image above is a full frame shot with the lens extended only to 100mm. It’s hard to see here, but when this image is printed large you can see the big smile on the face of the paddler waiting for his friend to complete the drop.