Coarse Islands

Map Color

**Coarse Islands** are Betweenlands biomes characterized by large, steep islands with their shores rising a block above the surrounding Swamp Water, with some Weedwood and Sap Trees and several Giant Roots intertwining throughout the biome.

There is an additional variant, the **Raised Isles**, that can spawn independently of the normal variant and contains slightly different topography.

## Variants

### Raised Isles

 Map Color

The **Raised Isles** biome contains mostly the same terrain as the regular Coarse Islands biome, except that some of the Giant Roots reach much higher than usual and clusters of them may be holding up Raised Islands in the sky. These islands can contain some unique features, including Chiromaw Matriarch Nests inhabited by Chiromaw Matriarchs, and have unique ambience.

## Composition

Both Coarse Islands and Raised Isles biomes consist of:

* Swamp Grass
* Swamp Dirt, directly under the surface
* Cragrock, in large patches (all variants)
* Mud, underwater
* Middle Gem Ores, rarely underwater
* Betweenstone Pebble, on land or underwater
* Weedwood Bush, in clusters
* Root, occasionally in clusters sticking out from the water
* Blue Iris
* Cattail
* Copper Iris
* Nettle, rarely
* Swamp Tallgrass, occasionally
* Volarpad
* Bladderwort, rarely sticking out from the water
* Swamp Kelp, underwater
* Swamp Reed, sticking out from the water
* Mire Coral, rarely underwater
* Swamp Water, as seas between islands and Giant Roots
* Menhir, rarely

Raised Isles biomes additionally consist of:

* Rootman Simulacrum, rarely on the Giant Roots holding up Raised Islands (all variants)

## Mobs

The following mobs can spawn naturally on the surface in both Coarse Islands and Raised Isles biomes:

* Dragonfly
* Firefly, when the Rift event is active at night or inactive
* Gecko
* Frog
* Sporeling, only on Shelf Fungus
* Root Sprite, only on Giant Root blocks
* Anadia (purple), in water
* Greebling
* Greebling Rider, in the sky
* Lurker, in water
* Angler, in water
* Swamp Hag
* Wight
* Chiromaw

## Structures

The following structures can generate in both Coarse Islands and Raised Isles biomes:

* Weedwood Tree, on land or partially submerged in the water
* Giant Weedwood Tree, very rarely
* Sap Tree, occasionally
* Giant Root, abundantly twisting through land and the water
* Cragrock Tower, rarely

Raised Isles biomes can additionally generate the following structures:

* Raised Island, occasionally, supported by clusters of Giant Roots
* Chiromaw Matriarch Nest, uncommonly on top of Raised Islands

## Gallery

A Coarse Islands with several Giant Roots.A Coarse Islands with a Cragrock Tower in the distance.A Raised Isles from above the Raised Islands.A Raised Isles from below a Raised Island.1.12 Coarse IslandsA video of the revamped Coarse Islands from the first official 1.12 version onwards.An old picture of Coarse Islands from the 1.7.10 versions.Another view of the old Coarse Islands with a Cragrock Tower.Betweenlands Showcase- Coarse IslandsA video of the old Coarse Islands from the 1.7.10 versions.
## History

* Release 3.8.0:
	+ Betweenstone Pebbles now generate in Coarse Islands and Raised Isles biomes.
	+ Anadia now spawn in Coarse Islands and Raised Isles biomes.
* Release 3.7.0: Rootman Simulacra now generate under the Giant Roots supporting Raised Islands in Raised Isles biomes.
* Release 3.6.0:
	+ Added Raised Isles biome variant.
	+ Chiromaw Greebling Riders (later renamed to Greebling Riders) now spawn in Coarse Islands biomes.
* Release 3.4.0:
	+ Can now be viewed from Amate Maps.
	+ Menhirs now generate in Coarse Islands biomes.
	+ Greeblings and Root Sprites now spawn in Coarse Islands biomes.
* Release 3.3.0:
	+ Added biome foliage color.
	+ Giant Roots now generate in Coarse Islands biomes.
* Beta 2.0.0: Added biome grass color.
* Beta 1.0.2: Frogs now spawn in Coarse Islands biomes.
* **Beta 1.0.0**: Introduced.