There are four ancient keys you oughta find, and one needs three tablets to get it.
Material
How To Obtain
Mountain Wood Planks x50
Refine Mountain Wood in a Sawmill.
Mountain Wood can be obtained by chopping down any trees located on the Mountain.
Moonstone Bar x25
Smelt Moonstone Ore in an Ore Smelter.
Moonstone Ore can be obtained by mining Moonstone Ore nodes in the Frozen Mountain Cave.
Mountain Coloring x50
Craft using Mountain Berries at a Simple Workbench.
Mountain Berries can be found on the surface andinside Mountain Templeson the Mountain.
Lighthouse Repair Stage Two Materials
Mountain Stone Block x50
Refine Mountain Stone in a Sawmill.
Mountain Stone can be obtained by breaking any Mountain Boulders on the Mountain.
Moonstone Bar x30
Glass x20
Smelt Sand in a Kiln.
Sand can be obtained by using your pickaxe on sand at any location.
Cement x15
Craft with Calcium, Sand, and Charcoal in a Kiln.
Calcium can be obtained by breaking Calcium Rocks found on the surface and cliffs on the Mountain.
Interact with the Lighthouseonce you’ve got the materialsduring each repair stage.
It’s alwaysavailable at the Fisherman’s Shop, but the caveat is that itcosts 100,000 Gold to purchase.
From there, you’llstart climbing upthe mountain, andseveral different obstacleswill make it difficult.
You canunlock the Mountain Explorer achievementby climbing up to the peak with the Red Chest on it.
What Can You Find In The Jungle?
The first new ingredientsfor the Fisherman Professionare also available as soon as you arrive.
Find out some useful tips here!