The Peoria Sports Complex is one of the nation's largest spring training facilities. It is home for the Seattle Mariners and San Diego Padres with 10,000 seats and 12 lighted practice fields. The complex is used for concerts, car shows and other baseball leagues when spring training in not in full force. There are many outdoor activities to choose from in Peoria. Lake Pleasant Regional Park is a 24,000-acre area, which includes the second largest lake in Arizona.
Visitors can choose from camping, picnicking and hiking.
The Pleasant Harbor Marina at Lake Pleasant is the perfect launching spot for boats. There are fishing excursions and watercraft rentals available here too. In the 1880's, William J. Murphy was in the area when he made his prediction. He predicted the land that is now Peoria would become very valuable after the Arizona Canal was built. So Murphy decided he would head east to convince others of his prediction.