It has been asked frequently where the locations for couple water-fetching quests.
For the tourists quests with the forestfire:
Go towards the river behind the abandoned summer home, the head north a bit until you get to a little beach. You will see the watermill almost directly across the river. You can dismount and fill up the bucket anywhere from here.
The ‘meltwater’ refers to the glacier above Valedale Village. Go across the bridge toward Avalon’s house, and then go north along the river, by the water reeds. It’s a similar location you got the waterlily for the sick horse.