Iceland's Thrihnukagigur volcano has been dormant for 4,000 years but will open up next month for escorted adventures deep within the volcano. It promises to be a once-in-a-lifetime experience for both skilled and novice hikers.

"It's been over four decades ago since the first man set foot on the moon. But it's only now that humans are offered the chance to see what a volcano looks like on the inside," says Inside The Volcano, a website operated by 3H Travel, a licensed tour operator in Iceland.

After a short hike across lava fields and a safety briefing, participants will descend 400 feet via a cable car, deep into Thrihnukagigur volcano. Veteran mountain climbing and trekking guides insure safety as the tour group spends about an hour of the 5-6 hour tour on the floor of the magma chamber.

"The distance from top to bottom is a little short of three NYC's Statue[s] of liberty planted on top of each other. The beauty of the crater lies in its enormous and, to some extent, intimidating size," says 3H Travel.

Returning to the surface via a cable lift, participants are served a traditional Icelandic Meat Soup before being returned to their hotel in Reykjavik.

Get an idea of what it is like in this video:

The price? ISK 37,000 (about $300).

Filed under: Hiking, History, Iceland