The bottom left islands of ragnarok give a good amount. Look out for smaller, golden rocks.
Psst, you. Yes, you, Crystal Isles player.
Since it looks like cheese you can probably find it on the moon
Make a trap next to the wyvern cave. Kill wyverns u will get sulfur and when u killed them all u get free eggs.
It look like cheese
A helpful tip should include more words
Look for shinny rocks a little brighter than metal though :)
There is a massive sulfur spawn on ext in the bottom left. You can get around 3k
ark ragnarok, go to volcano area and look for small orange rocks mine with pick. Not big ones those are rock golems
You also need it for Preserving Salt