Most visits to Lithuania are trouble-free but you should be aware of the global risk of indiscriminate international terrorist attacks, which could be against civilian targets, including places frequented by foreigners.
Rivers of Lithuania are typical lowland rivers: they are slow, they make meanders, the valleys are wide. Because of abundant precipitation, the river net is dense: on the average 0.99 km of rivers flow in 1 km² of the territory.
Sightseeing in Lithuania is one of the main activities, which you can include in your trip to Lithuania. There are a number of famous places in Lithuania, that it may be difficult for you to choose where to start from. However, the capital of the country, Vilnius is the place, where all the actions start from.