[00:00:26]As the cave team explore deeper,

随着洞穴探险队往更深处走去

[00:02:31]each chamber reveals ice crystals

他们都能发现比前一个冰室

[00:04:53]more strange and spectacular than the last.

更奇形怪状 蔚为壮观的冰晶体

[00:11:54]No-one on the team imagined a single Antarctic mountain

队员们没人能想到 一个南极冰山

[00:15:24]could house so many wonders.

竟藏着如此多的奇景

[00:17:14]Down at the foot of Mount Erebus,

埃里伯斯火山山脚下

[00:23:20]a third crew, the dive team,

第三支队伍 潜水队

[00:25:27]plan to explore the volcano's lower slopes,

打算探秘位于冻结海平面下的

[00:28:14]which extend beneath the frozen sea.

火山低坡带

[00:31:33]On board is underwater camera man Hugh Miller.

水下摄影师休·米勒是其中一员

[00:34:11]The problem is, we don't actually know what's under the ice here.

问题是我们并不知道冰层下面是什么

[00:37:51]So who knows, it's a bit of an adventure.

谁知道呢 就当作是探险吧

[00:42:00]Old-fashioned tools still work best.

旧时的工具仍然是最好用的

[00:44:09]First, a hand chisel to create an opening,

先是用凿子凿开一个缺口

[00:47:00]then a saw to widen the hole.

接着用锯子把洞口扩大

[00:51:43]Ice-diving in the coldest waters on the planet

在地球上最寒冷的海域里面潜水

[00:54:16]should be taken extremely seriously.

应当是件慎之又慎的事情

[00:56:54]This dive's going to be a lot of things

这次潜水充满着很多因素

[00:58:51]and warm is not on that list.

但温暖显然排除在这个名单之外

[01:02:52]Insulated suits will keep

绝缘潜水衣只够让他们

[01:04:17]them alive under the ice for only 60 minutes.

在冰海里待六十分钟

[01:08:20]Once the helicopter departs, there's no margin for error.

直升机离开后就没有犯错的余地了

[01:11:07]The dive team begin to explore the lower slopes of Erebus,

潜水队开始探秘埃里伯斯火山的低坡带

[01:19:22]discovering a hidden world rarely seen by humans.

揭开一个人类知之甚少的世界的面纱