Luhrs Beach is a great launch for kayaks and canoes. The day we were there we saw a steady stream of kayaks launching and loading. One of the benefits of this launch is it is accessible at a pretty low tide. We came in on a +1.0 and had no troubles at all.
From Luhrs Beach, you can paddle up McAllister Creek, over to the Nisqually River, or across Nisqually Reach to Anderson Island. Fishing and crabbing are an easy paddle. We paddled up McAllister Creek, back down and then turned west and paddled up Nisqually Reach.
Number of Portages:
Watch the tides and currents. Do not leave your boat if you get stuck in the mud.
The tide flats extend much farther than you'd expect, and the tide can go out fast. Also, the wind can pick up and make crossings tricky. Stick to the Creek if you're a novice.