I found out that some instances have worlds outside of them, like scholo and MGT.
If you use XYZ you can get out of the instance into the surrounding area. So you can get out of Scholo into WPL and go fish in the water there.
I haven't been able to test if because it says my fishings not high enough but If someone is bored give it a try. and let me know what you get. Sorry to waste your time if it doesn't work.