In the Southwest area of Lake Superior, part of the natural border between the U.S. and Canada, there`s a pristine chain of 21 islands. They are called the Apostle Islands, the jewels of Lake Superior. It`s a national park, rich and everything from human history to natural history. We recently showed you how a bitterly cold winter crusted over the caves and ice. Now, we are stepping inside.

在苏必利尔湖西南部加-美边境交界处有一条由21座岛屿组成的原始链条，这些岛屿被称之为阿伯斯特尔群岛，被看做是苏必利尔湖的项链。这里属于国家公园，景色优美物产丰富，拥有悠久的人类历史和自然历史文化。最近我们向您呈现过寒冷冬天里洞穴和冰雪的画面，现在我们要走进里面去看一看。

Over the past few months, more than 100,000 people had journey to the northern tip of Wisconsin, marching over ice covered Lake Superior for more than a mile each way, in a bitter cold. All because of what lies ahead.

在过去几个月的时间里，超过10万人来到威斯康星州北段，冒着严寒穿过冰雪覆盖的苏必利尔湖去一看究竟。因为那里有吸引他们的地方。

This is crazy!

太疯狂了!

Dozens of ice caves, stretching for over a mile along the coast or giving people an experience of a lifetime.

数十个洞穴绵延海岸数英里，或许是在告诉人们时间的足迹。

That`s really cool.

太酷了!

It`s like walking into the Holy ..

这简直就像行走在天堂里。

While some of the caves are massive like this one, which is called the garage, others .

一些洞穴很大，就跟这个一样，所以把它称之为车库，其他的……

It`s kind of claustrophobic.

有些显得比较幽闭。

Require some crawling.

需要一些刷新。

Getting into the little one.

正进入一个小的洞穴。

It`s well worth it.

太值得一看了!

Inside each cave houses, a unique icy masterpiece, all courtesy of Mother Nature.

在每个洞穴里面都是一副独特的冰雪巨作，都是大自然巧夺天工的作品。

That`s a really weird pinkish hue.

这个粉色调调真奇怪。

The colors in there are really weird.

这里面的色彩都特别稀奇，特别独具匠心。

The caves which kayakers flocked to every summer, are made of sandstone.

每年夏天皮艇爱好者们聚集的洞穴都是由砂岩形成的。

They are overlaying by a wet soil. There are springs and sips. And so, these rocks actually have little cracks in them. And so, there`s a lot of water that is coming down through and over the rocks and forming into ice formations.

这些洞穴表面覆盖着一层潮湿的土壤，有小溪流过，表层还有很多小孔。这些岩石中间几乎是没有裂缝的，所以表层上的水会顺着小孔留到下面，从而形成了这些“冰雕”。

The ice is starting to melt away in some spots. This is the first winter in five years the caves have been accessible and there`s no way of knowing when we`ll be able to see them again.

在一些地方冰雪开始融化，这是五年以来第一次在冬天进入洞穴，我们不知道我们不能不能再一次见到这壮观的场面。

In the Southwest area of Lake Superior, part of the natural border between the U.S. and Canada, there`s a pristine chain of 21 islands. They are called the Apostle Islands, the jewels of Lake Superior. It`s a national park, rich and everything from human history to natural history. We recently showed you how a bitterly cold winter crusted over the caves and ice. Now, we are stepping inside.

Over the past few months, more than 100,000 people had journey to the northern tip of Wisconsin, marching over ice covered Lake Superior for more than a mile each way, in a bitter cold. All because of what lies ahead.

This is crazy!

Dozens of ice caves, stretching for over a mile along the coast or giving people an experience of a lifetime.

That`s really cool.

It`s like walking into the Holy ..

While some of the caves are massive like this one, which is called the garage, others .

It`s kind of claustrophobic.

Require some crawling.

Getting into the little one.

It`s well worth it.

Inside each cave houses, a unique icy masterpiece, all courtesy of Mother Nature.

That`s a really weird pinkish hue.

The colors in there are really weird.

The caves which kayakers flocked to every summer, are made of sandstone.

They are overlaying by a wet soil. There are springs and sips. And so, these rocks actually have little cracks in them. And so, there`s a lot of water that is coming down through and over the rocks and forming into ice formations.

The ice is starting to melt away in some spots. This is the first winter in five years the caves have been accessible and there`s no way of knowing when we`ll be able to see them again.