The former narrow-gauge railway line between Trieste and Porec, which operated between 1902 and 1935, and was known as Porečanka. It is now one of the most popular cycling trails.
The railway was operational only 33 years, but it still made a big impact on the surrounding area, in both economic and cultural sense. After abandoning the line, te railway was left to decay, until 2006, when the first Parenzana revival project begun- “Parenzana – the Route of Health and Friendship”, that started to convert the line into cycling trail. Through the next 10 years or so, and two other projects, the rest of the railway was transformed and Info centers where set up. The trail connects Italy, Slovenia and Croatia, with most of the trail going on the latter two.
Now you have 120 km of great trekking bike experience (lots of gravel roads), with great views and the hint of history on the tracks. They are not to demanding, so appropriate for everyone. You can do it in one day, when you want to train, but its better to extend your trip to 2 or 3 days, stopping and taking in the views, the feelings and the history.
You can find more info here: http://www.parenzana.info
The trail is not that long, but we advise you not to race through it, but rather take detours to visit all the exciting POIS surrounding the trail.