There's a boat launch on the channel connecting Upper and Lower Nemahbin that charges a launch fee. There's also a free carry-in launch on the west side of the lake. Overall a nice lake with plenty of structure for fish. The lake tends to get a fair amount of recreational boat traffic in the summer so not a good fishing experience when there's boat traffic.
I usually fish this lake a couple of times a year for a little variety. It's a nice size that's not too big to navigate by kayak. It's fairly sheltered with a large island to break up the wind. It's worth checking out if you live in the area and are looking for some variety.