The tennis court is located in town.
Very refreshing on summer days is the artificial lake in Jablonec n.N.
We also recommend the "Iser Moor" - a biosphere botanic reservation with plenty of seldom plants.
In our surrounding you can walk to a lot of observation towers. The "Jested tower" is 1012 metres high. From the german so called "Jeschken" you will have a unique view over the entire Liberec area.
By the way Liberec is only 20 km far away and a wonderful town for shopping.
But the best shopping metropolis is Prague. The so called "heart of Europe" is rich of precious buildings of different centuries. Prague is a cultural centre which is always worth a day trip. Driving the highway it would take you one and a half hour to get there.
You will definitely enjoy the combination of sight-seeing in Prague and relaxing in the nature of the Iser Mountains.