== Water level ==
Water at sea level is universally set throughout the whole of Wurm and is always the same. This also applies when [[mining]] tunnels. If mined deep enough sea level will be reached and create a submerged [[cave floor]] tile, which can also be used to collect water from, just like any other submerged tile.
Water depth puts some restrictions on various action:
* [[Paving]]: At water level (+/- 0)
* Passable by [[large cart]]s: Two dirts below water level (-2)
* [[Mining#Opening a mine|Tunneling]]: Four dirts below water level (-4)
* [[Digging]] or [[Mining#Surface mining|Surface mining]]: Up to five dirts below water level (-5)
* [[Mining#Floor and ceiling mining|Floor mining]]: ?
* [[Dredging]]: ?
== Travelling on the waterways ==