National GeographicAug 8, 2026This Santorini sister island is Greece's best-kept secretJust opposite the famous Greek hotspot, Therasia has spectacular churches, ancient history and a new boutique stay.13 things in this storySanta Irini RetreatHotelOffers boutique stay with whitewashed suites and sunset views.Santa IriniSightFamily church, Santorini's namesake, sighted by homecoming sailors.Monastery of KimisisSightHas a cobalt blue dome on the rim of Trypiti Cape volcano.Korfos BaySightPort catering to caldera boat tours.ManolasNeighborhoodVillage at island's apex with cave houses and views.Fyrgano restaurantRestaurantLocal favorite with farm-to-fork Greek salads.Panorama RestoRestaurantOffers creative dishes like baby calamari moussaka.Mikra Thira wineryPlaceModern building offering vineyard tours and tastings.Explore ThirasiaPlaceOffers hiking, mountain bike, and e-bike excursions.AgriliaNeighborhoodAbandoned cave house settlement set in a gorge.Church of the Virgin MarySightPeach and yellow hues, referred to as 'The Mexican Church'.Korfos CoveSightRiva PortSightRead the full piece at National Geographic →