The Vltava ( Moldau in German) is the longest river in the Czech Republic, running north from its source in Sumava through Cesky Krumlov , Ceske Budejovice , and Prague, merging with the Elbe (Labe) at Melnik.

It is 430 kilometers long and drains about 28,090 square kilometers; at their confluence the Vltava actually has more water than the Elbe, but joins the Elbe at a right angle to its flow so that it appears a mere tributary.
Several dams were built on it in the 1950s, the biggest being Lipno Dam in Sumava.

Apartments that offer Vltava River view in Prague:

Apartment River View Classic - Two bedroom apartment for up to 5 guests (can sleep 7 guests) 

Apartment Matthew I -  Two bedroom apartment for up to 6 guests (can sleep 7 guests)

Apartment River View Large - Two bedroom apartment for up to 6 guests (can sleep 9 guests) 

Apartment Matthew II - Three bedroom apartment for up to 8 guests (can sleep 10 guests)

Apartment River View Grande - Three bedroom apartment for up to 7 guests (can sleep 10 guests) 

Apartments Matthew IV  - One bedroom apartment for up to 4 guests (can sleep 5 guests)

Apartments Matthew III -  Two bedroom apartment for up to 6 guests (can sleep 8 guests)