Behodar:

 

If you scroll to near the bottom of https://www.arnotts.com/brands/farmbake, there is a little "red dots" scroller, and moving to the second/middle entry 

 

and then you go east through the desert until you find the singing bush, then you say the magic chant and fire one shot into the air which will summon the invisible swordsman, and that will show you the way to the Golden Crunch biscuits.

I don't know why people complain that web sites are so difficult to navigate.