Tri-City Park Lake is an 8-acre body of water situated in the City of Placentia. It's primarily a warm-water fishery featuring largemouth bass, crappie, and sunfish. Rainbow trout are also stocked throughout the colder months by OCParks. As with any city lake, the fishing pressure can be quite high, so planning your fishing trip for early morning is ideal. Also, keep an eye on stocking dates.