Mar 31, 2021 She made a big splash when she arrived here in 2016, and we missed her big-time when she went away. Now, as the Oregon Zoo puts the finishing touches on its new Polar Passage habitat, Nora the polar bear is back! Beginning Thursday, April 1, the zoo will open public walkways around the new polar bear habitat, which officially opens later this spring. In the meantime, guests may get some up-close looks at Nora as she explores, splashes around or naps in her new home. Fans should keep in mind that viewing opportunities will be up to Nora herself, who may prefer to be in her behind-the-scenes den areas at times.