{"version":"1.0","type":"card","id":"24b4d5d7-69e0-4ee6-81eb-8efd711d4e15","url":"https://stacklist.com/card/24b4d5d7-69e0-4ee6-81eb-8efd711d4e15","title":"12 Best Things to Do in Rijeka, Croatia (2026 Guide)","source_url":"https://jstraveldiaries.com/croatia/rijeka-croatia/","note":"Explore the best things to do in Rijeka, Croatia, plus a quick trip to Opatija. Beaches, sea views & city strolls await on the Kvarner coast.","image":{"url":"https://ucarecdn.com/af03ee07-f22f-40e6-95f9-62f7b6c5e506/","alt":"12 Best Things to Do in Rijeka, Croatia (2026 Guide)","width":1000,"height":562},"stack":{"id":"a466b50b-deb2-4fa0-b13a-411c6c7eb37d","title":"Hanor: Penthouse Rental in Rijeka, Croatia","url":"https://stacklist.com/c/travel/stack/a466b50b-deb2-4fa0-b13a-411c6c7eb37d"},"created_at":"2026-06-22T14:14:21.079Z","updated_at":null,"aco":{"summary":"This travel guide covers the 12 best things to do in Rijeka, Croatia, including walking along Korzo, visiting Trsat Castle, exploring museums, and taking a day trip to the Opatija Riviera. It provides accommodation recommendations, practical tips, and a suggested 3-day itinerary for exploring the Kvarner Bay region.","tags":["rijeka","croatia","travel-guide","opatija","kvarner-bay","city-break","things-to-do"],"key_entities":[{"name":"Rijeka","type":"location","confidence":0.99},{"name":"Croatia","type":"location","confidence":0.99},{"name":"Opatija","type":"location","confidence":0.97},{"name":"Kvarner Bay","type":"location","confidence":0.95},{"name":"Istria","type":"location","confidence":0.9},{"name":"Korzo","type":"location","confidence":0.92},{"name":"Trsat Castle","type":"location","confidence":0.93},{"name":"Hilton Rijeka Costabella Beach Resort & Spa","type":"organization","confidence":0.88},{"name":"Austro-Hungarian Empire","type":"concept","confidence":0.85},{"name":"Adriatic Sea","type":"location","confidence":0.85}],"classification":"reference","language":"en","confidence":0.85,"provenance":{"model":"claude-opus-4-6","tool":"@stacklist/mcp-server@2.0.0","confidence":0.85,"timestamp":"2026-06-22T14:14:29.870Z"},"token_counts":{"approximate":4991,"cl100k":4509},"content_hash":"sha256:76b4f78b052abf9e925dad5f5c9dae6792f3fe4c94250bf60a16811b57b0c6c2","acp_version":"0.2","body_available":true,"body_tokens":4991,"visibility":"public","agent_accessible":true,"status":"final"},"_links":{"self":"/api/public/card/24b4d5d7-69e0-4ee6-81eb-8efd711d4e15.json","html":"https://stacklist.com/card/24b4d5d7-69e0-4ee6-81eb-8efd711d4e15","md":"/api/public/card/24b4d5d7-69e0-4ee6-81eb-8efd711d4e15.md","stack_json":"/api/public/stack/a466b50b-deb2-4fa0-b13a-411c6c7eb37d.json"}}