After my first day in the Columbia River Gorge, I was so enamored of 
the place that I told Susan that we really had to go there on her 
morning off.  She was torn, because she had seen pictures and films of 
the Columbia River Inlet, where the US Coast Guard trains personnel to 
react to huge waves and ocean swells, and she really REALLY wanted to 
see that.  However, when I told her of hiking in the gorge, she decided 
that would be good, too, so we went to hike a series of trails a little 
to the east of the Multnomah Falls trail.  The Multnomah trail was 
paved all the way, and I wanted something a little wilder.  This series 
of trails was just that…not crowded, and a little rougher and more 
challenging that Multnomah.  The trails themselves are all fragments of 
other trails, and have no collective name.  I called it the Four-Falls 
Trail, because we saw four different waterfalls.  The whole circuit to 
Triple Falls and back was about 5 miles.  We crossed two streams, each 
with two waterfalls.  The first stream was Horsetail Creek, with 
Horsetail Falls and Ponytail Falls.  The trail actually goes BEHIND 
Ponytail Falls, which is pretty kewl.  The other stream was Oneanta 
Creek, with Oneonta Falls and it's associated gorge, and Triple Falls.

Photos:

gll0012.Four-Falls_Trail:  Susan at the base of Horsetail Falls

gll0013.Four-Falls_Trail:  View of Gorge looking east from trail to 
Ponytail Falls.  That's me in the shadows.

gll0014.Four-Falls_Trail:  Susan at the base of a rockwall on trail to 
Ponytail Falls.  The top of this wall was the objective of the 
switchback upon which we were hiking.

gll0015.Four-Falls_Trail:  On the way to Ponytail Falls

gll0016.Four-Falls_Trail:  On the trail behind Ponytail Falls

gll0017.Four-Falls_Trail:  Susan on the trail behind Ponytail Falls

gll0018.Four-Falls_Trail:  From behind Ponytail Falls

gll0019.Four-Falls_Trail:  Leaving Ponytail Falls

gll0020.Four-Falls_Trail:  Leaving Ponytail Falls.  That's Susan behind 
and to the right of the falls in the shadows

gll0021.Four-Falls_Trail:  Above Oneonta Falls, with Oneonta Gorge 
below.  The falls are not visible from the trail, but they are audible.  
Hiking up the gorge was an option in the past, but now that trail is 
closed for safety. 

gll0022.Four-Falls_Trail:  On trail near Triple Falls

gll0023.Four-Falls_Trail:  At Triple Falls

gll0024.Four-Falls_Trail:  At Triple Falls

gll0025.Four-Falls_Trail:  Triple Falls; footbridge above falls in 
background gives some idea of the size

Finally, on my side-trip to the coast of Oregon, I did visit the 
Columbia River Inlet that Susan had wanted to see.  I took a picture 
from the observation tower at Stephen's Point State Park.  The inlet is 
about as engineered as it can be.  Note the length of the rock jetties 
from both the Oregon and the Washington side of the inlet.

gll0026.Four-Falls_Trail:  Columbia River Inlet at Stephen's Point 
State Park