Lakes in the canton include : parts of Lake Lucerne ( Vierwaldstättersee ) , Lake Sarnen ( Sarnersee ) , Lake Lungern ( Lungerersee ) , Wichelsee , Tannensee and Melchsee .
Lakes in the canton include : parts of Lake Lucerne , Lake Sarnen , Lungerersee , Wichelsee , Tannensee and Melchsee .