The Master fisher is a non-player character whom players can find inside the Fishing Guild. He is the head of the Fishing Guild.
As the head of the guild, the master fisher watches the entrance to the guild to make sure that only players with at least level 68 in Fishing are allowed to enter. If a player with less than level 68 talks to him, he says: Hello, I'm afraid only the top fishers are allowed to use our premier fishing facilities.
The master fisher wears the Fishing cape, and sells this cape to players with level 99 in Fishing for 99,000 coins.