Coral Island Mining Guide – How to Unlock Shafts, Find All Ore & Upgrade Pickaxe

On Spring 7, a grumpy Mark will let you know you can now enter the Cavern northwest of the map in Coral Island. Thus, your mission kicks off: delve into elemental shafts, free the giants, and snag all the game’s gems just for their sparkle.

Mining is a standard mechanic in farming sim games, but Coral Island features not one but four 40-level shafts to explore. Inside, you’ll find your usual ores, gems, and scavengeables, but you’ll also have to fight several monsters. Here’s how to unlock every shaft in Coral Island and what you can expect to find in each.

How Mining Works in Coral Island

After Spring 7 in Coral Island, head northwest of the farm, past the ranch and the forest to uncover the Caverns. Scott will investigate the ruins inside but won’t dare venture to the lower levels. That’s your job.

At first, only the Earth Shaft will be unlocked. You’ll have to reach the bottom of the Earth Shaft to unlock more mines in Coral Island. This unlocks the Water Shaft, in which you must repeat this same procedure. 

Just because unlocking all shafts in Coral Island follows a similar process doesn’t mean you’ll find the same stuff in every shaft. Each shaft has a set of unique monsters, ores, and gems.

Where is the Blacksmith in Coral Island?

You’ll notice that rocks get progressively harder and harder to break in the Cavern. This might indicate that your pickaxe needs upgrading in the Blacksmith Shop. To find the Blacksmith in Coral Island, open the map and look for the anvil icon in Startlet Town.

Related: Waypoints in Coral Island: How to Unlock Fast Travel & All Secret Areas

The Blacksmith is right next to the Vineyard area and north of the graveyard. It’s open from Monday to Friday from 9:00 to 18:00 and on Saturdays from 9:00 to 14:00. Don’t go knocking on the Sanchez’s door on Sunday; they won’t be there. Here’s what you’ll need to upgrade the pickaxe:

	Tool Upgrade	Materials Required to Upgrade Tool	Time Required to Upgrade Tool
	Bronze Pickaxe	1x Standard Pickaxe 1500 Gold 5x Bronze Ingots 20x Wood Logs	1 day
	Silver Pickaxe	1x Bronze Pickaxe 3000 Gold 5x Silver Ingots 20x Wood Logs	2 days
	Gold Pickaxe	1x Silver Pickaxe 10000 Gold 5x Gold Ingots 5x Hardwood Logs	2 days
	Osmium Pickaxe	1x Gold Pickaxe 20000 Gold 5x Osmium Ingots 5x Hardwood Logs	4 days

Swords and other combat equipment can’t be upgraded in Coral Island. Instead, you’ll need to earn, find, or buy better equipment either at the Cavern, the Blacksmith, or the Band of Smiles. 

All Cavern Shafts, Ores, Gems, and Loot in Coral Island

Earth Shaft in Coral Island: All Levels, Ores, Gems & Loot

			Levels 1 – 20
Gems & Ore	Morganite Lepidolite	Fire Agate Pink Crystal	Bronze Ore Diorite	Granite Marble	Jasper Black Opal	Red Beryl
Geodes & Other Loot		Wild Seeds	Compost Rope	Earth Geode Mystery Geode	Coal
			Levels 21 – 40
Gems & Ore	Morganite Lepidolite	Diorite Fire Agate	Bronze Ore Silver Ore	Pink Crystal Jasper	Marble Granite	Black Opal Red Beryl
Geodes & Other Loot	Compost	Coal	Wild Seeds Slime Goop	Earth Geode Mystery Geode	Rope	Hardwood
Rewards		Level 10: Ring of Speed	Lvl 20: Gold Encrusted Hammer	Level 30: 12x Spikes	Level 40: 4x Jamu

Water Shaft in Coral Island: All Levels, Ores, Gems & Loot

			Levels 1 – 20
Gems & Ore		Diamond Silver Ore	Aquamarine Moonstone	Quartz Beryl	Crystal Azurite
Geodes & Other Loot	Manure	Wild Seeds	Water Geode Coal	Mystery Geode Hardwood	Slime Goop	Rope
			Levels 21 – 40
Gems & Ore	Silver Ore	Diamond Azurite	Aquamarine Moonstone	Quartz Beryl	Gold Ore Crystal
Geodes & Other Loot	Manure	Wild Seeds	Water Geode Coal	Mystery Geode Hardwood	Slime Goop	Rope
Rewards		Level 10: 8x Candied Fruit Tree	Level 20: Amber Shield Ring	Level 30: 10x Explosive 2	Level 40: 6x Jamu

Wind Shaft in Coral Island: All Levels, Ores, Gems & Loot

			Levels 1 – 20
Gems & Ore		Amethyst Jade	Variscite Pink Diamond	Amber Peridot	Emerald Gold Ore
Geodes & Other Loot	Manure	Hardwood	Wild Seeds Slime Goop	Coal Rope	Wind Geode	Mystery Geode
			Levels 21 – 40
Gems & Ore	Gold Ore	Osmium Ore Jade	Variscite Pink Diamond	Amber Peridot	Amethyst Emerald
Geodes & Other Loot	Manure	Hardwood	Wild Seeds Slime Goop	Coal Rope	Wind Geode	Mystery Geode
Rewards		Level 10: 10x Decoy	Level 20: Forager Ring	Level 30: 4x Jamu	Level 40: 15x Jamu

Fire Shaft in Coral Island: All Levels, Ores, Gems & Loot

			Levels 1 – 20
Gems & Ore	Purple Crystal	Onyx Rhondonite	Osmium Ore Garnet	Topaz Rose Quartz	Labradorite Ruby	Opal
Geodes & Other Loot	Manure	Hardwood	Wild Seeds Slime Goop	Coal Rope	Fire Geode	Mystery Geode
			Levels 21 – 40
Gems & Ore	Purple Crystal	Onyx Rhondonite	Osmium Ore Garnet	Topaz Rose Quartz	Labradorite Ruby	Opal
Geodes & Other Loot	Manure	Hardwood	Wild Seeds Slime Goop	Coal Rope	Fire Geode	Mystery Geode
Rewards		Level 10: 10x Explosive 3	Level 20: Flameguard Greatsword	Level 30: Blessed Opal Ring	Level 40: 25x Explosive 3

All Monsters & Monster Loot in Coral Island

Appearance	Monster Name	Dropped Loot/Rate	Spawn Location
	Simple Slime	Monster essence (10%), Slime goop (20%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%)	All shaft
	Earth Slime	Monster essence (10%), Slime goop (20%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Earth essence (15%)	Earth shaft
	Water Slime	Monster essence (10%), Slime goop (20%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Water essence (15%)	Water shaft
	Wind Slime	Monster essence (10%), Slime goop (20%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Wind essence (15%)	Wind shaft
	Fire Slime	Monster essence (10%), Slime goop (20%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Flame essence (15%)	Fire shaft
	Bat	Monster essence (10%), Bat wing (20%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%)	All shafts
	Spider	Monster essence (10%), Silky fur (20%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%)	All shafts
	Tuku – Tuku	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Coal (10%), Tough meat (3%), Batwing (3%), Silky fur (3%)	All shaft
	Bronze Tuku – Tuku	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Bronze ore (10%)	Earth shaft
	Silver Tuku – Tuku	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Silver ore (10%)	Water shaft
	Gold Tuku – Tuku	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Gold ore (10%)	Wind shaft
	Osmium Tuku – Tuku	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Osmium ore (10%)	Fire shaft
	Skully	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (20%)	All shaft
	Earth Skully	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (20%), Earth essence (15%)	Earth shaft
	Ice Skully	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (20%), Water essence (15%)	Water shaft
	Wind Skully	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (20%), Wind essence (15%)	Wind shaft
	Fire Skully	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (20%), Flame essence (15%)	Fire shaft
	Snatcher	Monster essence (10%), Stone (2.5%), Wood (2.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (10%), Tough meat (10%), Batwing (10%), Silky fur (10%), Bone (10%), Dark Essence (10%), Slime goop (10%), Stinger (10%), Poison sac (10%)	All shaft
	Spring Snatcher	Monster essence (10%), Stone (2.5%), Wood (2.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (10%), Tough meat (10%), Batwing (10%), Silky fur (10%), Bone (10%), Dark Essence (10%), Slime goop (10%), Stinger (10%), Poison sac (10%), Earth Essence (10%).	Earth shaft
	Summer Snatcher	Monster essence (10%), Stone (2.5%), Wood (2.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (10%), Tough meat (10%), Batwing (10%), Silky fur (10%), Bone (10%), Dark Essence (10%), Slime goop (10%), Stinger (10%), Poison sac (10%), Water Essence (10%).	Water shaft
	Fall Snatcher	Monster essence (10%), Stone (2.5%), Wood (2.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (10%), Tough meat (10%), Batwing (10%), Silky fur (10%), Bone (10%), Dark Essence (10%), Slime goop (10%), Stinger (10%), Poison sac (10%), Fire Essence (10%).	Wind shaft
	Winter Snatcher	Monster essence (10%), Stone (2.5%), Wood (2.5%), Sap (2.5%), Wild seeds (1%), Cursed fragment (10%), Tough meat (10%), Batwing (10%), Silky fur (10%), Bone (10%), Dark Essence (10%), Slime goop (10%), Stinger (10%), Poison sac (10%), Wind Essence (10%).	Fire shaft
	Amalo	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Poison sac (20%)	All shaft
	Earth Amalo	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Poison sac (20%), Earth essence (15%)	Earth shaft
	Water Amalo	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Poison sac (20%), Water essence (15%)	Water shaft
	Wind Amalo	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Poison sac (20%), Wind essence (15%)	Wind shaft
	Fire Amalo	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Poison sac (20%), Flame essence (15%)	Fire shaft
	Armolite	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Tough meat (40%)	All shaft
	Earth Armolite	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Tough meat (40%), Earth essence (15%)	Earth shaft
	Water Armolite	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Tough meat (40%), Water essence (15%)	Water shaft
	Wind Armolite	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Tough meat (40%), Wind essence (15%)	Wind shaft
	Fire Armolite	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Tough meat (40%), Flame essence (15%)	Fire shaft
	Ombuto	Monster essence (10%), Bone (80%), Tough meat (15%)	All shafts
	Pickling	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Silky fur (20%)	All shaft
	Rock Pickling	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Silky fur (20%), Earth essence (15%)	Earth shaft
	Ice Pickling	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Silky fur (20%), Water essence (15%)	Water shaft
	Wind Pickling	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Silky fur (20%), Wind essence (15%)	Wind shaft
	Fire Pickling	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Silky fur (20%), Flame essence (15%)	Fire shaft
	Sphekter	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Stinger (20%)	All shaft
	Earth Sphekter	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Stinger (20%), Earth essence (15%)	Earth shaft
	Ice Sphekter	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Stinger (20%), Water essence (15%)	Water shaft
	Wind Sphekter	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Stinger (20%), Wind essence (15%)	Wind shaft
	Fire Sphekter	Monster essence (10%), Stone (4.5%), Wood (4.5%), Sap (2.5%), Wild seeds (1%), Stinger (20%), Flame essence (15%)	Fire shaft
	Advanced Slime	Monster essence (10%), Slime goop (25%), Dark essence (80%)	All shafts