I made this trip to support my other hobby, photography, and decided to place some caches along the way. Camas Prairie and specifically Centennial Marsh are good locations to view birds in the spring when the marsh has water.
I've seen water up to and covering the road in the spring and plenty of bird variety. You never know what you might see here, perhaps anything from a Red Winged Blackbird to a Sand Hill Crane.
If you plan to hit these caches you may want to be sure and take along a cache kit or at least a pair of tweezers and perhaps a stiff piece of wire might come in handy.