Sigrid concludes this "personal journey into the unknown" with optimism about harnessing creativity in order to live a more fulfilling life with Alzheimer's even though it might not slow it down. We have to live in the present!

Spring has sprung and new life stirs on the Olympic Mountain ranges, the third great wilderness environment of this most diverse of national parks. The eponymous Olympic marmots awaken from their winter slumber to enjoy a feast, but must remain on the lookout for the bald eagle.

A year has gone by and Sigrid is back in Tacoma to spend time with her sister, Sylvia. Things have changed quite a bit, and Sigrid shows us Sylvia's new setup.

Gray whales migrating north from Mexico must pass through dangerous waters off the coast of Olympic National Park, where groups of orcas are actively hunting them and their young.

With the right equipment and good technique, wing surfing is possible even in light winds. Ex-windsurfing champion and wind-foil pioneer Robby Naish shares his expert tips to get up and cruising on those less breezy days.

A great deal happens beneath the waves of the park’s dramatic coastline. Sea stars hunt mussels and urchins in shallow pools, while seals, sea lions, and sea otters inhabit kelp beds, feeding on the small creatures that graze there.

The park was designated as a protected area by President Theodore Roosevelt over a hundred years ago. Since then, it has been maintained naturally by the various creatures that live there without human intervention. Each has their role to play in this biodiverse ecosystem.

The two sisters talk about how important singing was for them growing up and Sylvia sings a little bit, too. This is their final appearance together on video before Sigrid's departure the next day.

Having arrived at their spawning grounds, several male coho try out different techniques to impress a single female. The river otters love fish, and need to eat a lot of them to maintain their active lifestyle.

As the orcas celebrate the success of their hunt, silver salmon, or “coho” are moving from the sea to the inland streams where they will breed. But they‘ll have to be careful and lucky too, as otters and black bears are waiting along the way.

Alongside the wild Pacific coast of the USA, the Olympic National Park encompasses an unparalleled variety of exciting natural environments, from rainforest to rugged mountains. First, we experience the thrill of the hunt, as a pod of killer whales targets a group of unsuspecting Steller sea lions.

Sigrid and Sylvia converse in the kitchen over coffee. They talk about coffee, about the city of Tacoma, about their month together, and about what they see out the window. Sylvia enjoys making sound effects with her voice every now and then.

After the rains, there is enough water and food for all to share in the desert and Saguaro National Park can bask in all its glory.

A thunderstorm hits with the power of a tropical monsoon, putting the desert creatures at risk from the powerful floodwaters.

A first for the United States: A jury found a former president guilty of a serious crime in New York. Here are some details and plenty of new words to learn!