Cycling Tatras

Hi everyone!
I am sorry for using english, hope you do not mind.
I am from Bosnia and I am planning to visit Slovakia and Poland with my crew this summer . We are interested in riding attractive trails, we are not afraid of long and steep ascends with the bikes on our backs. We have climbed the highest peaks in Balkans peninsula with our bikes (on our backs, sometimes). Now, we are aiming for Tatras, both Visoke and Nizke Tatry. I have already spoken with some guys from Poland and I am bit disappointed by the fact that serious mountainbiking in the way we prefer to do is forbidden in national parks. What is the situation really? I can not imagine that High Tatras have not been ridden widely since there are so many trails...
We plan to do this trip in summer so there's a lot of time for planning our hut-tu-hut riding.
Any suggestion is appreciated as well as useful information!

You are welcome to visit our website http://www.mtb.ba and our country, Bosnia and Herzegovina as it still does not have strict regulations for mountainbiking across Dinaric Alps!

Thank you in advance!

Regards from Sarajevo, Bosnia.