Arroyo Seco Park is 19.9 acres of improved parkland, including lighted athletic fields, playground equipment, and picnic areas. There are also included undeveloped lands, and a flood channel.

The park is divided into three sections: The upper section includes three lighted sports fields with backstops, parking and a small concession/storage building, and it is utilized regularly by the local Little League, American Youth Soccer Organization and softball leagues.

A residential building is located on the north side of the park.

The center portion of the park includes: group picnic shelter, tables, barbecue, a playground with play structures, storage building and a small amphitheater.

The southern portion of the park includes two lighted softball fields.

Both the upper and lower parts of the park are utilized for soccer during the fall season.

An equestrian/hiking trail is on the south and west perimeter of the park connecting to the Arroyo Park.

Arroyo Park: The 19.9 acre Arroyo Park is located on the north sided of the Pasadena 110 Freeway. Aroyo Park provides major lighted athletic fields for South Pasadena.