|Location:||350 km north of Nanaimo, Vancouver Island BC, Canada|
|Dimension:||L=10,616 m, VR=353 m.|
|Address:||Arch Cave, Tel: +1-, Fax: +1-,|
|As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
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Arch Cave is currently the fourth longest cave of Canada  with a total length of more than 10 kilometers. It is also the sixth deepest cave. While it is actually a real wild cave, there are regular organized cave trekking trips into the cave. This cave is very dangerous so we recommend stronkly not to visit it without such a guided tour. And even those tours require appropriate equipment, physical fitness and basic caving knowledge.