Darinh wrote:Schafer has the best access for fishing and the upper middle fork can be awesome this time of year using pretty much any big ugly terrestrial bug.
What he said.
Meadow Cr is nice too off the north end. The hike to the water isn't really bad (an old cat trail). Way less traffic than Schafer. Schafer has a nice mix of fishing and more wildlife, though, and you can cruise by the Chinese Wall for some views from the air. It's pretty neat.
If you were going to stay for a civilized overnighter, the Holland Lake Lodge is perfect. Great day hikes. The owner (Christian W) might be able to pick you up. Fine dining at the lodge. Best views in the Seeley Valley (and weekend weddings are sold out more than a year in advance because of it).
Seeley Lake itself is nice too...and a good 1/2 day trip can be had paddling the sloughs on the north side, with a couple of miles lily meadow paddling and fishing at the lake entrance to the shore before hiking back. Canoe rentals are available somewhere. Inflatables are better. Only fished it a couple times in the middle of summer...slow, but who knows now...
It will be hard to have a bad time.
Lindbergh Lake/Crystal Lake are tops for easy access big/mtn lake fishing respectively.