This is the easiest full day on the Ride Madrid list: 40 km along an old railway path that has been turned into a traffic-free greenway, with only 180 m of climbing across the whole day. The surface is flat and the gradients are the gentle ones a railway needs, so there are no ramps to dread and no junctions to watch.
The ride starts from Madrid and follows the greenway towards the coast at your own pace. You can stop when you like, ride side by side and talk, and treat the distance as a long, relaxed outing rather than a workout.
Compared with the other tours, it asks for the least effort. The Madrid riverside gravel intro is also easy, but it is shorter and teaches gravel handling. The forest gravel loop and the big climb morning ask much more of your legs. Here the point is simply a full day outdoors, which suits families, beginners and riders coming back to cycling.