It was a great autumn day in Washington DC, as I cycled along Capital Crescent Trail and Mount Vernon Trail from Bethesda to National Airport for the last bit of nature colors before winter kicked in.

Autumn Colors in Downtown Bethesda Autumn Colors in Downtown Bethesda
Autumn Colors in Downtown Bethesda

As it's converted from abandoned railroads, Capital Crescent Trail was level and mostly straight and well-maintained, making it almost the most casual-rider-friendly bike trail around Washington DC. The downside was that, it got pretty crowded during weekends.
Since the (unpaved) segment from Silver Spring to Bethesda was closed for Metro purple line construction, I started my trip in Bethesda, among a diverse local crowd ranging from professional cyclists to toddlers. It just seemed everybody was treasuring the year's last few good days as much as I did.

Oh, I got my new phone (Samsung Galaxy S9) just a few days before, so this was the first trip I took with it. Amazingly, algorithms behind its camera way exceeded my expectation, so that I would have the following stunning pictures on a wonderful day with minimal post-processing. However, slightly to my dismay, I won't get as much satisfaction from my hobby of Photoshopping as the photos were already too much to my taste.

Capital Crescent Trail Capital Crescent Trail
Capital Crescent Trail Capital Crescent Trail
Capital Crescent Trail Capital Crescent Trail
Capital Crescent Trail

Near downtown Bethesda the trail had mere 15mph speed limit, which wasn't much to my liking. Unfortunately, that's as far as one can reasonably weave around traffic without knocking people over.

Dalecarlia Reservoir
Dalecarlia Reservoir
Tunnel
Tunnel
The only tunnel along the trail.
Chesapeake and Ohio Canal under Arizona Avenue Bridge Chesapeake and Ohio Canal under Arizona Avenue Bridge
Chesapeake and Ohio Canal under Arizona Avenue Bridge

With the help of gravity (that I later figured out), it was a pleasant cruise reaching C&O Canal from Bethesda. After that, the trail runs parallel to Potomac River.

Arizona Avenue Bridge
Arizona Avenue Bridge
Chesapeake and Ohio Canal
Chesapeake and Ohio Canal
Chesapeake and Ohio Canal
Capital Crescent Trail Capital Crescent Trail
Capital Crescent Trail

From now on and occasionally, the line of bushes broke off giving way to views of the mighty Potomac River on a bright sunny day.

Potomac River
Potomac River
Francis Scott Key Memorial Bridge across Potomac River
Francis Scott Key Memorial Bridge across Potomac River
Washington Monument in the background.
Island of Rocks in Potomac River Island of Rocks in Potomac River
Island of Rocks in Potomac River
Capital Crescent Trail along Potomac River
Capital Crescent Trail along Potomac River
Francis Scott Key Memorial Bridge across Potomac River
Francis Scott Key Memorial Bridge across Potomac River
Francis Scott Key Memorial Bridge across Potomac River
Remains of Alexandria Aqueduct
Remains of Alexandria Aqueduct

An hour or so after I started in Bethesda, I reached Georgetown Waterfront, where I took a break in gentle breeze from Potomac River, caught a few Pokemons and had my lunch there. My next stop was Roosevelt Island across the river.

View from Georgetown Waterfront
View from Georgetown Waterfront
Roosevelt Island across Potomac River
Roosevelt Island across Potomac River
Chesapeake and Ohio Canal in Georgetown
Chesapeake and Ohio Canal in Georgetown
Francis Scott Key Memorial
Francis Scott Key Memorial
Fifteen-star-fifteen-strip flag of early 19th Century United States flew in memory of the poet that wrote the poem which became "The Star-Spangled Banner".
Potomac River
Potomac River
Francis Scott Key Memorial Bridge
Francis Scott Key Memorial Bridge
Delta A321 Taking Off
Delta A321 Taking Off

Roosevelt Island was connected to Rosslyn via a footbridge and no bikes were allowed on the island. Its parking lot was pretty much filled, just to show how much the locals loved nature when weather's right.

Highrises of Rosslyn across Potomac River
Highrises of Rosslyn across Potomac River
Theodore Roosevelt Monument Theodore Roosevelt Monument
Theodore Roosevelt Monument
Ponds by Theodore Roosevelt Monument Ponds by Theodore Roosevelt Monument
Ponds by Theodore Roosevelt Monument
Spires of Georgetown University across Potomac River
Spires of Georgetown University across Potomac River
Branches Lying in Potomac River
Branches Lying in Potomac River
And I went for a little adventure on those branches in Potomac River.
Francis Scott Key Memorial Bridge across Potomac River
Francis Scott Key Memorial Bridge across Potomac River
Georgetown Waterfront from Theodore Roosevelt Island
Georgetown Waterfront from Theodore Roosevelt Island
Trail Trail
Trail
This portions of trail was over a swamp, so this boardwalk was built.
Swamp Swamp
Swamp
Ducks Ducks
Ducks
Ducks and Pond
Ducks and Pond
Autumn Colors
Autumn Colors
Different stages of foliage.
Trail Trail
Trail
Bridge to Theodore Roosevelt Island
Bridge to Theodore Roosevelt Island

So after spending an hour an half hiking and Pokemon hunting on Theodore Roosevelt Island, I went back to cycling on Mt. Vernon Trail. Again, this segment of Mt. Vernon trail has all the good attributes, level not curvy and well-maintained, with wonderful views of Potomac River and nice buildings of the nation's capital on one side.

Mt Vernon TrailMt Vernon Trail
Mt Vernon Trail
Lincoln Memorial and Washington Monument
Lincoln Memorial and Washington Monument
Theodore Roosevelt Bridge and Downtown Rosslyn
Theodore Roosevelt Bridge and Downtown Rosslyn
Theodore Roosevelt Island across Potomac River
Theodore Roosevelt Island across Potomac River
Arlington Memorial Bridge
Arlington Memorial Bridge
My Bike by Mt Vernon Trail
My Bike by Mt Vernon Trail
Mt Vernon TrailMt Vernon Trail
Mt Vernon Trail
Lawn
Lawn
Tree in Golden Color
Tree in Golden Color
Arlington Memorial Bridge and Washington Monument across Potomac River
Arlington Memorial Bridge and Washington Monument across Potomac River
Arlington Memorial Bridge
Arlington Memorial Bridge
Mt Vernon Trail Mt Vernon Trail
Mt Vernon Trail

Half an hour after that, I reached Gravelly Point, just to the North of National Airport's runway, which was an favorite spot for local families for picnics and plane spotting.
Well, I shall say plane spotting here would be more spectacular should National Airport be under south-bound operation as Gravelly Point would be right below its landing path. Nonetheless, takeoff's were still great to watch.

Ronald Reagan Washington National Airport
Ronald Reagan Washington National Airport
Potomac River
Potomac River
US Capital across Potomac River
US Capital across Potomac River
United A320 Landing
United A320 Landing
Ronald Reagan Washington National Airport
Ronald Reagan Washington National Airport
United A320 waiting at end of runway, presumably waiting for a gate to clear.
Air Canada CRJ-900 Taking Off Air Canada CRJ-900 Taking Off
Air Canada CRJ-900 Taking Off
Southwest B737 Taking Off Southwest B737 Taking Off
Southwest B737 Taking Off
Delta A321 Taking Off Delta A321 Taking Off
Delta A321 Taking Off
George Washington Memorial Parkway
George Washington Memorial Parkway

So everything went right this Saturday, my bike didn't break down, my new cell phone were taking spectacular pictures, and the weather's perfect if not a bit too windy. That is, right until the last moment, when I entered Washington Metro Crystal City Station and watched the information board displayed "delayed" for half an hour. Ok, I understand why people in Washington DC hated its metro.
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