Great Biking in Jizera Mountain
Singletrack pod Smrkem is the first track of it's kind ever build in the Czech. It is man made track trough the woods and it is mostly copying countour line, which ensures nice flow for everyone. Random ascents and downhills are not extreme and whole track is suitable for wide variety bikers.
New tracks are available every year, nowadays there are many connected witj Poland. Great FUN!