The lake Plateliai is one of the main attractions in the park. It is also the clearest, cleanest and the deepest lake with seven islands, each having its own legend. Lake has been recently researched by archaeologists. They found sunken hulks of wooden boats, a 16th century bridge and other items of historical interest. This has attracted scuba divers from all over the country who love to explore its depths.
The lake is surrounded by dense forests full of old oaks. These forests were used by Soviets during the Cold War to hide the first nuclear missile base of the Soviet Union. The Nuclear missiles were targeted towards the biggest European cities including Berlin, London, Madrid and Paris. The site brings back to life the realities of the Cold war period.
The Zemaitija National Park is also famous for its cultural heritage. Old churches, homesteads, wooden chapels and crosses are a reminder of the local traditions, which are still alive today.