Love the game I wish the cooking and crafting had a numbered system like the item burner when you remove items to clear inventory space, instead of crafting/cooking things one item at a time. I'm really struggling to find cavern to Sera-Vasir (matriarch) saying a caven south west but I haven't been able to find it... I've been searching for a while I'd appreciate the help
It's not a 'cavern', but a 'coven'. You can find it in the Swamplands, to the far left of the main swamp area (where the music and title appear).
You will however need some Flimsy Shears to access this area. You can find a blueprint for Flimsy Shears in the serpentfolk's hideout, where you learned about Sera-Vasir!