Take Hwy 88 to Carson Pass and turn off at Blue Lakes. Head back in there and go nuts on dirt roads and hidden trout ponds. Get a good topo too so you can search out a trip.
Also, From Hwy 89 on the west shore of Lake Tahoe, take the Rubicon / McKinney road back in from the staging area. After about 2 miles you will start passing lakes on your right. The third lake is Miller and does well. Take the dirt road just after Miller to the left and go uphill to Richardson. That one is chock full of brookies.
Take Hwy50 to Ice House road all the way back in to Loon Lake. At the second dam, go down the tailrace and pick up the Rubicon trail and head in to Spider, Lower Buck, Upper Buck, Rockbound Lakes and Rubicon Reservour. The last couple are within the Desolation Wilderness and you will have to park the bikes and hike in from there. This area is spectacular and a very easy hike of 5 miles on improved trail will get you into at least 4 lakes that will provide you bald eagles for fishing compainions. Fall colors are starting to come out and it is still mild temperatures.
Dig out your maps and look up Gold Lakes Basin out of Sierra City and Downeyville. The Buttes will take your breath away and the trails are a not so well kept secret. My favorite is Upper Sardine and at Lower Sardine, you can rent a cabin so you aren't having to rough it too much.
Most mountian lakes haven't turned over yet since the weather has been quite warm still, but there will be almost no one at these spots after Labor Day and you will find fish.
Try using a small night crawler behind a wedding ring or Uncle Larry's. In the streams, use a single #14 hook with an egg and the smallest of splitshots about 18" up the line.
Anyone who takes their dad (or dad-in-law) fishing has a spot reserved in Heaven for them. Good Luck!