Chandra Taal (meaning the "Lake of the Moon"), or Chandra Tal is situated in the Spiti part of the Lahul and Spiti district of Himachal Pradesh (India).
 The name of the lake originates from its crescent shape.
 It is situated at an altitude of about 4300 m in the Himalayas.
 Mountains of scree overlook the lake on one side, and a magnificent cirque presents a view on the other.
 Chandra Taal is a popular destination for trekkers and campers.
 The lake is accessible on foot from Batal as well as from Kunzum Pass from late May to early October.
 There is also a motorable road available till a parking made 2km before the lake.
 Stay options are available 5km before the lake on prebooking.
 The road from Kunzum Pass is accessible only on foot, and it is about 8 km from Chandra Taal.
 Suraj Tal is also accessible Chandra Taal, 30 km away.
 Vast meadows on the banks of the lake are the camping sites.
 During springtime, these meadows are carpeted with hundreds of kinds of wildflowers.
The Masurian Canal (German: "Masurischer Kanal" , Polish: "Kanał Mazurski" , Russian: Канал Мазурский ) is an unfinished 50.4 km long canal connecting the Lava River in Kaliningrad Oblast of Russia (a tributary of the Pregolya) and Lake Mamry, one of the Masurian Lakes in Poland.
 The present day Polish-Russian border cuts the canal, with the southern section about 20 km long located in Poland, and the rest in Russia.
 There are 10 locks on the canal, 5 in Poland and 5 in Russia, designed to handle boats up to width 7,7 m, length 45 m and draught 2.5 m.
Angrapa (Russian: Анграпа , Polish: "Węgorapa" , German: "Angerapp" , Lithuanian: "Angrapė" ) is a river in northeastern Poland and Russia (Kaliningrad Oblast).
 It originates in Lake Mamry and flows into the Pregolya, of which it is a main tributary.
Węgorzewo (German: "Angerburg" , Lithuanian: "Ungura" ) is a tourist town in the Warmian-Masurian Voivodeship, Poland, not far from the border with Russia's Kaliningrad Oblast.
 It is the seat of Węgorzewo County.
 Lake Mamry (called "Mauersee" until 1945) is close to the town.
Giżycko (German:    , Lithuanian: "Lėcius" ; former Polish: "Lec" ) is a town in northeastern Poland with 29,796 inhabitants (2004).
 It is situated between Lake Mamry and Lake Niegocin, and has been within the Warmian-Masurian Voivodeship since 1999, having previously been in the Suwałki Voivodeship (1975–1998).
 It is the seat of Giżycko County.
The Bartians (also "Barthi", "Barthoni", "Bartens", or "Barti") were an Old Prussian tribe who were among the last pagans of Europe before the Northern Crusades forced their conversion to Christianity.
 They lived in Bartia (also "Bartenland" or "Barthonia"), a territory that stretched from the middle and lower flow of Łyna river, by the Świna river, and Lake Mamry, up to the Galindian woods.
 The territory is quite precisely known from description in Chronicon terrae Prussiae, dated 1326.
Mamry (German: "Mauersee" , Lithuanian: "Mauras" ) is a lake in the Masurian Lake District of Poland's Warmia-Mazury Province.
 It is the second largest lake in Poland, with an area of 104 km.
² Maximum depth is 44 m, average is 11 m.
The Great Lakes (French: "les Grands-Lacs" ), also called the Laurentian Great Lakes and the Great Lakes of North America, are a series of interconnected freshwater lakes located primarily in the upper mid-east region of North America, on the Canada–United States border, which connect to the Atlantic Ocean through the Saint Lawrence River.
 Consisting of Lakes Superior, Michigan, Huron (or Michigan–Huron), Erie, and Ontario, they form the largest group of freshwater lakes on Earth by total area, and second largest by total volume containing 21% of the world's surface fresh water by volume.
 The total surface is 94250 sqmi , and the total volume (measured at the low water datum) is 5439 cumi .
 Due to their sea-like characteristics (rolling waves, sustained winds, strong currents, great depths, and distant horizons) the five Great Lakes have also long been referred to as "inland seas".
 Lake Superior is the second largest lake in the world by area, and Lake Michigan is the largest lake that is entirely within one country.
 The southern half of the Great Lakes is bordered by the Great Lakes Megalopolis.
Phewa Lake, Phewa Tal or Fewa Lake is a freshwater lake in Nepal located in the south of the Pokhara Valley that includes Pokhara city; parts of Sarangkot and Kaskikot.
 The lake is stream-fed but a dam regulates the water reserve, therefore, the lake is classified as semi-natural freshwater lake.
 It is the second largest lake in Nepal, the largest in Gandaki Zone followed by Begnas Lake.
 Phewa lake is located at an altitude of 742 m and covers an area of about 5.23 km2 .
 It has an average depth of about 8.6 m and a maximum depth of 24 m .
 Maximum water capacity of the lake is approximately 43000000 m3 .
 The Annapurna range on the north is only about 28 km (linear distance) away from the lake.
 The lake is also famous for the reflection of mount Machhapuchhre and other mountain peaks of the Annapurna and Dhaulagiri ranges on its surface.
 The Taal Barahi Temple is situated on an island in the lake.
Suraj Tal or Suraj Tal Lake also called Surya taal, is a sacred body of water, literally means the Lake of the Sun God, and lies just below the Bara-lacha-la pass (4,890m) (8 km in length) in the Lahaul and Spiti valley of Himachal Pradesh state in India and is the third highest lake in India, and the 21st-highest in the world.
 Suraj Tal Lake is the source of Bhaga River which joins the Chandra River downstream at Tandi to form the Chandrabhaga River in Himachal Pradesh territory, and as it enters Jammu and Kashmir it is renamed as the Chenab River.
 The Bhaga River (a tributary of the Chandrabhaga or Chenab) originates from Surya taal.
 The other major tributary of the Chandrabhaga, the Chandra originates from the glacier close to the Chandra Taal lake in the Spiti district.

Question: Which lake, Lake Mamry or Suraj Tal, is the second largest lake in Poland?
Answer: Mamry