How to get more gold after Khrumbul-dun?

In Khrumbul-dun I got daily amounts of metal. This haul I took over to the Isle of Awakening. But as gold was the last one and I was going on with the story and they stopped bringing up metals for me.

How can I get easily gold now? Because mining it is kinda hard as the blocks are hard to break. Should I have waited longer to progress the story and get more days with mining hauls this way?

Yes, in Khrumbul-dun, you get gold by mining. But...late in the game...

-- SPOILERS FOLLOW --

In Malhala, you can get gold from Huge Horns, Big Bad Bottom Teeth, and Titanic Top Teeth at the Forbidden Altar. Also, There's an explorer's shore called Coral Cay which, after completing the objectives, gives you infinite gold