Yes you can. Actually yesterday i stayed down there for 7 hours straight. All u need to have is anti fire sheild and anti fire pots. This make it so u do not take any damage at all. But with that said, you must be maging or ranging them from a distance (only way u can range like this is with darts, or 1 handed weapons). See, these dragons are very lazy, and if your not meleeing or standing right infront of them, they wont come after you. They will just be posted, shooting at u. Like this pic shown below. Now if you have alot of anti fires , you can stay down here for hours :) (1 dose = 6 minutes of no damage) hope this helps!