Original sentence: It arrives, according to the local legend, at precisely that time in the form of a giant wave which flushes a secret nutrient into the Murrumbidgee River following the release of water from the Blowering and Burrinjuck Dams.The 5 o'clock wave is a tongue in cheek theory on the reasons for Wagga Wagga's sporting success.The wave is said to continue downriver at high speed and indeed, is so powerful that surfers can ride it along the meandering river until it reaches the town of Narrandera
Edited sentence: In common with most similar lore, it serves primarily to confuse outsiders and amuse locals.Surfers are often said to ride this wave for hundreds of kilometres.The 5 o'clock wave is a part of local lore in parts of Australia.The 5 o'clock wave is supposedly a large wave, several metres in height and created by the daily release of dam overflow, that is said to travel downriver at high speed, and to reach the location at which the tale is being told at 5 o'clock each afternoon.The tale is common to rural riverine areas located downstream from major dams, particularly those with rivers that have the Snowy Mountains as their source.This apocryphal wave is the man-made equivalent of the natural, and genuine, tidal bore phenomenon