Weekend stay, English speaking group, walking in the national park

Hello,
would anybody like to join an English speaking group for a weekend adventure 27.2-1.3. in a rocky national park? It's in Poland, just on the borders with The Czech Republic. Paying just 900 Crowns for accommodation for two nights. Adults and a few kids;)
They are there to learn and pracitse English, and we do it while discovering the beuty of the park. Fun activities, games and competitions are part of the program. English speakers welcomed to join. Option of shared ride from Prague.