This diversion is all about fishing. Can be accessed by talking to Fishermen that are located at many major fishing spots around the world. They are able to transport the player to the competition's waiting room right before the diverison is about to start, located on Isla Anglerine. To participate in a match on the island requires a ticket, and it is possible to play at least two times a day.

During each 10 minute competition of Fish Flingers, players encounter 6 varieties of fish. To catch them they must select the right combination from different baits, tackles and weights. Occasionally, big fish will appear and players can help each other to catch them. Completing all six tackle combinations and helping with big fishes leads to the higher scores.

The player's fishing level has no impact on the competition itself. All players, regardless of fishing ability compete equally during the game. Only after the competition ends and the scores are revealed, does the experience reward earned vary according to your fishing level. Players are awarded fishing experience based on their score, as well as tokens to buy a variety of rewards from a fisherman.

The rewards are fishing experience as well as fishing tokens that can be exchanged by talking to fisherman for the fisherman outfit that consists of a hat, jacket, waders and boots that grants 1% fishing experience per part worn. More details can be found here: https://runescape.wiki/w/Fish_Flingers