My earliest memory of a large lake is of Lake Tahoe in northern California, but the body of water I’ve been to the most is the Sea of Galilee.  Mark Twain compared the two on his visit in the 1860s:

The celebrated Sea of Galilee is not so large a sea as Lake Tahoe by a good deal—it is just about two-thirds as large. And when we come to speak of beauty this sea is no more to be compared to Tahoe than a meridian of longitude is to a rainbow. The dim waters of this pool cannot suggest the limpid brilliancy of Tahoe; these low, shaven, yellow hillocks of rocks and sand, so devoid of perspective, cannot suggest the grand peaks that compass Tahoe like a wall, and whose ribbed and chasmed fronts are clad with stately pines that seem to grow small and smaller as they climb, till one might fancy them reduced to weeds and shrubs far upward, where they join the everlasting snows. Silence and solitude brood over Tahoe; and silence and solitude brood also over this lake of Gennesaret. But the solitude of the one is as cheerful and fascinating as the solitude of the other is dismal and repellent” (Mark Twain, Innocents Abroad, pp. 375-76).

The sea of Galilee, from the heights of Safed, pp2071b
Sea of Galilee and Plain of Gennesaret pan1d, tb032507719sr
A few months ago