Kenai Fjords National Park

Listen first. Somewhere out on the water, or high on the valley wall, there is a low crack like distant thunder. Then a long rumble, and silence again. That is ice. It moves, breaks and settles all around you. The air here is cool even in summer. It smells of wet rock, spruce needles and salt, and the light has a pale, washed quality, as if the sky has been rinsed in meltwater.

Welcome to Kenai Fjords National Park, on the southern coast of Alaska's Kenai Peninsula. The town of Seward is the gateway. From there, roads, trails and boats lead into a landscape still being shaped by ice. The park was established in 1980 under a major federal law that protected millions of acres across Alaska. It is not a park of monuments or buildings. It is a park of ice, rock and ocean, and of the animals that live where those three meet.

At the heart of it all lies the Harding Icefield. It is one of the largest ice fields located entirely within the United States. Picture a vast frozen plateau high above the coast. Snow falls there heavily year after year, far more than can melt in summer. Over time that snow compresses into dense glacial ice. Only the tallest mountain peaks break through the surface. Geologists call these isolated summits nunataks, an Inuit word for peaks that stand above surrounding ice.

From this icefield, nearly forty glaciers flow outward, like slow rivers moving downhill. Some end on land, in valleys of gravel and meltwater. Others reach all the way to the sea. These are called tidewater glaciers. When their front edge meets the ocean, great blocks of ice break off and fall into the water. This is called calving. The sound you hear across the bay, that deep crack and roar, is often the noise of calving ice.

Here is something many visitors do not realise. The fjords themselves are mountain valleys that the sea has flooded. Glaciers carved deep, steep-sided valleys during colder periods. As the ice retreated, ocean water filled them. On top of this, the land along this coast is slowly sinking. The great Alaska earthquake of 1964 dropped parts of this shoreline suddenly. So the mountains you see rising from the water are partly drowned. Their lower slopes continue far below the surface.

The easiest place to meet the ice is Exit Glacier. It is the only part of the park you can reach by road, a short drive outside Seward. A network of trails leads toward the glacier's edge. Along the road and paths, you will see small signs marked with years. Each sign shows roughly where the front of the glacier stood at that time. The early markers stand far from the ice today. Walking past them, you can measure the retreat with your own steps.

That walk is one of the quietest and most powerful experiences in the park. The signs pass through young forest, then shrubs, then bare rock. That pattern tells a story of its own. Plants return to land in a slow order after ice leaves it. Mosses and small flowers come first, then alders and willows, then cottonwood and spruce. The oldest forest stands where the ice left earliest. The youngest ground, grey and raw, lies nearest the glacier today.

As you get closer, notice the colour of the ice. It is often a deep, clear blue. This is not a reflection of the sky. Glacier ice is so tightly packed that it absorbs the red part of sunlight and lets blue light pass through. Fresh breaks in the ice show the strongest blue. Older surfaces turn white or grey with trapped air and dust. Please respect the barriers here. Glacier edges can collapse without warning.

For those with strong legs and a full day, the Harding Icefield Trail climbs steeply from the valley floor. It rises through forest and meadow onto open rock above the treeline. At the top, the view opens onto the icefield itself, a white expanse that seems to run to the horizon. Locals often say it looks like the last ice age never quite ended up there. Weather changes fast on this route, so it demands real preparation.

The other face of the park is the coast, and most people see it by boat from Seward. Tour boats leave through Resurrection Bay and head toward the outer fjords. Out there, the life in the water is remarkable. Sea otters float on their backs among kelp. Steller sea lions crowd onto rocky ledges, loud and heavy. Humpback whales feed in these waters in summer, and orcas also pass through. On the cliffs, you may see horned and tufted puffins.

People have lived along this coast for a very long time. The Sugpiaq people, also known as Alutiiq, travelled these waters in skin-covered boats and harvested seals, fish and birds. Their history is tied closely to the sea and the shoreline. Because the coast has sunk and the ice has moved, many traces of older settlements are hard to find. Archaeologists have studied sites along these fjords, and the work continues to add to our understanding of coastal life here.

One more surprise lies in a name. The icefield honours President Warren Harding, who visited Alaska in 1923. Exit Glacier has a more practical story. It is commonly said that an expedition crossing the icefield in the 1960s came down by way of this glacier, and so it became their exit. It is a modest name for a place of such scale. But it fits a park where people are clearly the visitors, and the ice is still in charge.

Before you leave, stop for a moment wherever you are standing. Look at the ground at your feet. Is it rock polished smooth by ice, or soil held by roots? Look up at the ridgelines, and at the snow resting on them. Every season adds a little to the icefield and takes a little away. As you walk back toward the road or the harbour, listen once more. You may hear that distant crack again... the sound of a landscape that is still moving.