One of the most popular and beautiful diving sites on Lake Zug is called "gipsy place" in the forest between Zug and Walchwil. There's a beautiful wall, sunken trees and some seagrass meadows. Another nice diving site is called "Strick" and close to Arth. There's also a nice wall with big rocks and on the shore one can find many sunfish. The diving site at restaurant Baumgarten in Immense is also very popular. Usually Lake Zug is the first clear lake in spring after all the snow has melted. June 2009 to July 2019, 64 Photos.