Watch Movies2Watch. Every spring the surroundings of the Lake Lubāns, the largest lake in Latvia, are in flood. The efforts to prevent the floods have been going on since the middle of the 19th century. Today the lake, encircled by dikes, no longer threatens the surrounding homesteads but the seeming safety has been bought for a very high price – destruction of the natural balance. Can the damage be remedied? Two Latvians will travel to the wetlands of Japan in search for a possible solution.