Emerald Bay, South Lake Tahoe
If you take the ferry boat from South Lake Tahoe they will take you very close to some eagle nests. Here is a shot similar to what you will see if you go on the several hour cruise.
While in Tahoe, you have to visit Vikingsholm and Emerald Bay. Take a picnic and make a day of it...
I think this island is in a place named Emerald Bay. If not it should be judging by the colour of the water.