Un/Mapped: Guanacaste in pictures, World War II secrets, sea otter antics & more

Get a taste of our newest itinerary in these striking photos—from pristine beaches and a rare tropical dry forest to cowboy culture and farm-to-table freshness.           See how one young explorer is helping to conserve the islands—all thanks to an inspiring encounter with one renowned tortoise.             A key player in the celebrated Dunkirk evacuation, this ancient English fortress harbors a whole lot of history.   © 2019 Lindblad Expeditions - National Geographic 052519_ENEWS_TA