A well-maintainrd and beautiful bike ride in a large metropolitan area.

An urban trail - I encountered enough issues that only the Georgetown stretch along the Potomac River before climbing away from the river would bring me back. Use the C&O trail. Same trailhead, MUCH BETTER experience. The parking area/situation in Georgetown is bad. There’s a much better parking lot up river (away from Georgetown) at Fletcher’s Cove that is accessed from Canal Road NW. If the the upper lots are full, take the tunnel downhill which will take you to a very casual parking area by the river that moves at a much slower pace with plenty of spots to park and places to relax. The Bethesda to Silver Springs stretch is extremely urban and riders will compete with busy traffic, bad signage, several dismounted crossings, unmarked detours, and bad signage (that’s worth repeating). The end of the trail, like many stretches of the detoured route, isn’t marked at all. There’s no trailhead in Silver Springs and no off-street parking if you wanted to take a one way trip. The stretch running along the Potomac and C&O trail however is very nice and rates a higher score; I’d give it a 4. BUT, I recommend bringing your patience. I encountered quite a few people who had no clue about trail etiquette and I encountered clots of people standing on the trail chatting, bikes parked & blocking the trail surface, etc.

I just finished the (GAP/C&O) trail this past weekend and all was good. The dry couple of weeks helped a lot. Some ruts and only a few puddles, which is to be expected. Nice to see some of the new upgrades along the trail. Make sure you take extra water during these months. Sometimes the pumps don’t work. Great to see the trail patrol cyclists out riding as well.

I rode this trail from Oxon Hill Maryland through the Mt. Vernon Trail into Georgetown and it is a beautiful ride this morning. I road 30 miles that included this trail which is so so beautiful. Next week I am planning to ride all the way to Bethesda Maryland. I stopped at the sign that said welcome to Montgomery County and was told if I went 4 more miles I would have been in Bethesda.

Rode the entire length a couple of times. Last time in June 2019. The first 10 miles out of Cumberland are terrible. If it has rained recently you will get muddy. When we went through it looked like they hadn't even mowed sections of it in a year. After that the trail had some rough patches but was ride-able. I would definitely not ride a rode bike on this trail, especially not with road tires. You need a bike with some suspension and some grip through this area. The Paw Paw tunnel was open when we went through, very interesting. Very rough and narrow inside the tunnel.
Don't know what you do if you meet a bicyclist coming the opposite direction inside the tunnel. Between Harper's Ferry and Brunswick they have resurfaced the trail and it was great. They need to put a ramp on the bridge to Harper's Ferry. We skip it as we don't want to leave our bikes behind and we aren't carrying fully loaded bikes up the spiral staircase. Fort Fredrick is an interesting side trip. The only reason the trail gets as a high a rating as I gave it is that there are free campsites all along the trail and historical markers. A lot of the campsites are by the Potomac river. They are very rustic just a picnic table, fire ring and Porta John. Sometimes there is a working water pump, sometime there isn't. I would suggest carrying a water filter, the water from the pumps is usually orange with iodine. They are usually quiet except for the occasional train. Along this trail you really can't get away from the occasional train. Also, bring bug spray in the summer if you are camping. You really don't need sunscreen, very seldom are you out from under the trees. There are huge trees all along the path.

Started at the Georgetown trailhead. (Ouch!) But, that’s the city for you; close to home and musical parking spaces. We saw Fletchers Cove parking after we were riding. And, will definitely park there the next time we hit this trail. While it is scenic, it behoves you to keep your eyes on the trail as you might run into that cute little girl, or that jogger. My wife loved the river, and I liked the tunnel. We both liked that it went through downtown Bethesda.

Rode from Williamsport MD upriver to Ft Frederick in 2018. Same potholes and other trail safety issues (only worse) that we saw on our first ride in 2014. Shame there is no biking group in the area to take over and maintain what could be a fantastic ride.

I won't ride this part of the trail again.

I rode this from the entrance off K Street (under the Whitehurst Bridge) up to Bethesda, where work on the Purple Line interrupts it. It's a charming trail, well-maintained though somewhat narrow and overgrown-feeling in places. It winds along the river, has some bridges and tunnels, and offers some great views of the C&O towpath. The only negatives: the trafficking entrance to the trail, and the dank-smelling river at the beginning.

Towpath is nearly impassable from lack of basic maintenance over the past 20 years. Mud in places is over 8" deep. The tunnel has trees growing out of its face and the boardwalk has holes rotted through in many places. Such a shame that America can't maintain a simple bike path.