Linked from
The 19 pages that link to Lava tube, each with the reason it gives.
KīlaueaRelated: Tubes can carry Kīlauea lava far from its vent while insulating it from cooling.
PāhoehoeRelated: Pāhoehoe crust can roof active channels, helping them develop into lava tubes.
Mount KilimanjaroRelated: Lava tubes occur among the volcanic features documented on Kilimanjaro.
Volcanic tourismRelated: Lava tubes offer accessible underground encounters with volcanic geology.