Upon arrival, we experienced a dock completely covered in bird excrement, impossible to find a clean spot on which to step. It appeared all other docks, which were closer to the marina, had been cleaned prior to our arrival. Many of these docks were vacant and appeared available during our two-night stay. We ended up cleaning our own dock. The combination of dirty dock and being on a dock farthest from the marina made for a less than pleasant experience. In the past we had pleasant experiences and enjoyed our stays at Portside Marina, we just wanted to pass this on to hopefully prevent other boaters from such an experience.