Harpoon - OSRS Wiki

Fishing Guild - OSRS Wiki

Harpoon (disambiguation), RuneScape Wiki

Big swordfish - OSRS Wiki

That's enough RNG for one nightDragon Harpoon @195 KC, Dragon Thrownaxes @226 KC : r/2007scape

Pay-to-play Fishing training, Old School RuneScape Wiki

Harpoon, Old School RuneScape Wiki

Fishing spot (big net, harpoon) - OSRS Wiki

Tempoross - OSRS Wiki, part time devil wiki

I've check the wiki page a dozen times just to make sure he still drops it : r/ironscape

Update:Chambers of Xeric, Old School RuneScape Wiki

OSRS 2t Harpoon Guide - The Easiest Way!