As the title says, it is indeed about going inside a volcano. Obviously that won’t be an active volcano (any such volcano you could enter only once, and get instantly vaporized). Instead it’s a very special, probably even unique commodification of a dormant volcano, more precisely a drained magma chamber, going down over 120m below the crater top. It is located on the Reykjanes Peninsula a ca. 20-30 minute drive south of Reykjavik.
As you may recall from the general Iceland post, the Reykjanes Peninsula is also where