Yes, the lakes and waterways at Walt Disney World are teeming with fish, primarily largemouth bass. Because Disney maintains a strict "Catch and Release" policy and prohibits private fishing from the shores (except in designated areas), the fish populations have grown to impressive sizes, with some bass weighing over 8 pounds. The most common way to fish is by booking a Guided Bass Fishing Excursion, which departs from marinas at resorts like the Contemporary, Polynesian, or Fort Wilderness. These excursions provide all the gear and a professional guide. You can also find "dockside" fishing at Port Orleans Riverside and Fort Wilderness. While the Seven Seas Lagoon and Bay Lake are the most famous spots, the canals throughout the property are carefully managed to maintain a healthy ecosystem, though guests are strictly forbidden from swimming in these waters due to the presence of both fish and local wildlife like alligators.