Eternal Ice farming route in the Bjora Marches. It contains nodes and chests.
You can toggle them in the GW2TacO / BlishHUD menu -> Tekkit's Guides -> Icebrood Saga -> Bjora Marches -> Eternal Ice Farms. If you don't see these routes in the game, double-check if you properly followed Installation Instructions. If you still have issues, let me know in the #all-in-one-issues channel on our Discord