There's a largely unknown world to explore, right beneath your feet. Author Robert Macfarlane tells us what he finds intriguing about the "Underland." Plus, hop aboard for a sail to Oslo. And Dutch tour guides help us plan a trip to the Netherlands, where they recommend Haarlem, cycling to the sea, and other attractions beyond the usual sights in Amsterdam.

• Norwegian tour guide Pål Johansen
• Robert Macfarlane, author of "Underland" (Norton)
• Dutch tour guides Hans de Kefte and Jody van Engelsdorp

• Pål Johansen offers private tours in Norway and Scandinavia, and posts videos about his life in Oslo on his YouTube channel.
• Robert Macfarlane published Underland in 2019 to critical acclaim; it is now available in paperback.  Robert teaches Environmental Humanities in the English department at Emmanuel College at Cambridge University, and posts frequently to his Twitter account.
• Robert Macfarlane talks to Rick about two particularly mysterious landscapes in England, which he describes in his book Ghostways, on Travel with Rick Steves program #620 from November 2020.
• Rick visits Dutch sights "beyond Amsterdam" in Season 8 of his TV show Rick Steves' Europe.
• The city of Haarlem will update its coronavirus closures on its website.
• The Dutch Open Air Museum and the Kroller-Muller museum near Arnhem, have been closed to the public during the pandemic.