"We had heard a world of talk about the marvellous beauty of Lake Tahoe, and finally curiosity drove us thither to see it. Three or four members of the Brigade had been there and located some timber lands on its shores and stored up a quantity of provisions in their camp. We strapped a couple of blankets on our shoulders and took an axe apiece and started—for we intended to take up a wood ranch or so ourselves and become wealthy. We were on foot. The reader will find it advantageous to go horseback. We were told that the distance was eleven miles.

Chapter 38 of Roughing It:

Lake Como (Lago di Como in Italian, also known as Lario, after the Latin name of the lake; Lach de Comm in Insubric; Latin: Larius Lacus) is a lake of glacial origin in Lombardy, Italy. It has an area of 146 km², making it the third largest lake in Italy, after Lake Garda and Lake Maggiore. At over 400 m (1320 ft) deep, it is one of the deepest lakes in Europe, and the bottom of the lake is more than 200 metres (656 ft) below sea-level.

Gennesaret, Gennesareth or Ginosar, ("a garden of riches") was a town alloted to the tribe of Naphtali, called "Kinnereth" (Joshua 19:35), sometimes in the plural form "Kinneroth" (Joshua 11:2). In later times the name was gradually changed to Genezareth, Genezar and Gennesaret (Luke 5:1). No trace of the Gennesaret city remains. Flavius Josephus refers to the area as having very rich soil.
This city stood on the northwestern shore of the lake to which it gave its name: Lake of Gennesaret. It was perhaps half way between Capernaum and Magdala.

Sam and companions camped at Ain Mellahah, near Lake Huleh, September 18, 1867, they departed in the morning at 7:00am for Tiberias.

Mark Twain Project: Quaker City Itinerary

Ain Mellahah is referred to as Williamsburgh in the Daily Alta California letter 33 and as Baldwinsville in the book (page 482). Baldwinsville has also been used for Cesarea Phillipi or Banias.

See Bædeker (1876):  Route 20 page 375 or

Bædeker (1898): Route 30 page 293

The Mummelsee is a 17-metre-deep lake at the western mountainside of the Hornisgrinde in the Northern Black Forest of Germany. It is very popular with tourists travelling along the Schwarzwaldhochstraße. According to legends, the lake is inhabited by a Nix and the King of the Mummelsee.

Lake Garda (Italian: Lago di Garda [ˈlaːɡo di ˈɡarda] or (Lago) Benaco [beˈnaːko]; Eastern Lombard: Lach de Garda; Venetian: Ƚago de Garda; 

The Sea of Galilee (Hebrew: יָם כִּנֶּרֶת, Judeo-Aramaic: יַמּא דטבריא, גִּנֵּיסַר, Arabic: بحيرة طبريا), also called Lake Tiberias or Kinneret, is a freshwater lake in Israel. It is the lowest freshwater lake on Earth and the second-lowest lake in the world (after the Dead Sea, a salt lake), at levels between 215 metres (705 ft) and 209 metres (686 ft) below sea level. It is approximately 53 km (33 mi) in circumference, about 21 km (13 mi) long, and 13 km (8.1 mi) wide.

Lake Geneva (French: le Léman [lə lemɑ̃], lac Léman [lak lemɑ̃], rarely lac de Genève [lak də ʒ(ə)nɛv]; Italian: Lago Lemano; German: Genfersee [ˈɡɛnfərˌzeː]; Romansh: Lai da Genevra) is a deep lake on the north side of the Alps, shared between Switzerland and France. It is one of the largest lakes in Western Europe and the largest on the course of the Rhône.