North of Prague (75 mi.), start at Decin and mountain bike ride over to Decinsky Sneznick and down to Dolny Zleneck. Cross the river to the town of Hrensko and the up to Jethichovice and Jablonne.
Note: in rural areas, few people speak any English or German. Therefore, a few words of Czech is a must.
Overall, North Bohemia is the 2nd most popular mountain bike trail of all 5 mountain biking rides in Czech Republic.