There are 13 natural reserves in Warsaw - among others, Bielany Forest, Kabaty Woods, Czerniakow Lake. About 15 kilometres (9 miles) from Warsaw, the Vistula river's environment changes strikingly and features a perfectly preserved ecosystem, with a habitat of animals that includes the otter, beaver and hundreds of bird species. There are also several lakes in Warsaw - mainly the oxbow lakes, like Czerniakow Lake, the lakes in the Lazienki or Wilanow Parks, Kamionek Lake. There are lot of small lakes in the parks, but only a few are permanent - the majority are emptied before winter to clean them of plants and sediments.
How many natural reserves are in Warsaw? How far from Warsaw does the Vistula river's environment change noticeably?  How many lakes are there in Warsaw?
13 15 kilometres several
There are 13 natural reserves in Warsaw - among others, Bielany Forest, Kabaty Woods, Czerniakow Lake. About 15 kilometres (9 miles) from Warsaw, the Vistula river's environment changes strikingly and features a perfectly preserved ecosystem, with a habitat of animals that includes the otter, beaver and hundreds of bird species. There are also several lakes in Warsaw - mainly the oxbow lakes, like Czerniakow Lake, the lakes in the Lazienki or Wilanow Parks, Kamionek Lake.
Warsaw