It is a huge wooden stadium with seven lights on top and several shells on the side (acting as an entrance). The sign is similar to the the Krusty Krab's except bigger plus the word "stadium" added at the end. It also has a big parking lot.
There is a field designed for football games within the stadium, and there are a lot of seats for the crowds to sit. It also has many toilets, and a plumbing station nearby.