Simplify the following text for a Grade 6 native English-speaking person.
Original: Kaunas is located at the confluence of the two largest Lithuanian rivers , the Nemunas and the Neris , and near the Kaunas Reservoir , the largest body of water entirely in Lithuania .
Simplified: Kaunas is found at the point where the two biggest Lithuanian rivers , the Nemunas and the Neris , meet . It is also near the Kaunas Lagoon , the largest body of water in Lithuania .