Latvia is a country on the Baltic Sea with the Gulf of Riga in the west between Estonia in the north, Lithuania in the south, Russia in the east, and Belarus in the southeast. The Baltic Sea with the Gulf of Riga is the inseparable sights and has always been admired by tourists and local people. Latvia is among world's greenest countries.Its countryside is marked by wide beaches as well as dense, large spread forests covering over 40% of this country. Latvia also counts more than 3,000 lakes and 12,000 rivers and has four seasons of near-equal length. Winter starts in mid-December and lasts until mid-March. Winters have average temperatures of −6 °C (21 °F) and are differentiated by stable snow cover, bright sunshine, and short days. Summer starts in June and lasts until August.