The Swamp Cavern is a tunnel that connects the Mountainside and the Swamp. It can be reached by going over the Rock Bridge or through the swamp. It is very dark, with trees being unable to spawn in it. Most players refer to this tunnel as the entrance to the swamp.
Swamp Grotto[]
The Swamp Grotto is a terrain anomaly that resides under the Swamp Cavern passage.
History[]
The grotto was originally a large semiring that surrounded the swamp, and allowed access to to the incomplete River Tunnel during that time.
It was made shorter when the River Tunnel was made into a memorial.
The cavern as seen from outside (near the Mountainside)
A view inside the cavern