섬이 가장 많은 나라 TOP 5! 1위는 인도네시아가 아니라 스웨덴(267,570개)입니다.
섬 개수는 나라마다 집계 기준이 달라 출처에 따라 차이가 있습니다(WorldAtlas 집계, 한국은 해양수산부 2020년 기준 3,348개).

사진 출처
Image by 51581 from Pixabay (https://pixabay.com/photos/island-ocean-sea-lagoon-beach-3542290/)
Image by Andaloosa from Pixabay (https://pixabay.com/photos/wake-ripples-island-clouds-blue-3991146/)
Image by Broderman from Pixabay (https://pixabay.com/photos/sweden-reed-water-summer-798835/)
Image by DEZALB from Pixabay (https://pixabay.com/photos/canada-thousand-islands-chateau-1037185/)
Image by DEZALB from Pixabay (https://pixabay.com/photos/canada-usa-border-ontario-1309750/)
Image by Elisabetta_Miele from Pixabay (https://pixabay.com/photos/lofoten-islands-ocean-rocks-lofoten-8000196/)
Image by Elisabetta_Miele from Pixabay (https://pixabay.com/photos/lofoten-norway-islands-fjord-7967448/)
Image by HoangToney from Pixabay (https://pixabay.com/photos/lake-mountains-forest-landscape-8305673/)
Image by Jussi777 from Pixabay (https://pixabay.com/photos/s%C3%B6dersk%C3%A4r-suomi-lighthouse-island-4271008/)
Image by Jussi777 from Pixabay (https://pixabay.com/photos/s%C3%B6dersk%C3%A4r-suomi-lighthouse-island-4271023/)
Image by Jussi777 from Pixabay (https://pixabay.com/photos/s%C3%B6dersk%C3%A4r-suomi-lighthouse-island-4271028/)
Image by Kanenori from Pixabay (https://pixabay.com/photos/beach-sea-footprints-sand-6292382/)
Image by Kanenori from Pixabay (https://pixabay.com/photos/volcano-natural-cloud-landscape-3779159/)
Image by Michelle-Maria from Pixabay (https://pixabay.com/photos/island-ocean-maine-coast-seascape-9054568/)
Image by Monika59 from Pixabay (https://pixabay.com/photos/karlskrona-sweden-sea-sky-island-2594960/)
Image by PIRO4D from Pixabay (https://pixabay.com/photos/lighthouse-sea-sunset-evening-2372461/)
Image by Patjosse from Pixabay (https://pixabay.com/photos/alaska-mountain-wilderness-island-2964659/)
Image by Sonyuser from Pixabay (https://pixabay.com/photos/lake-mountains-banff-national-park-5961239/)
Image by SwedishStockPhotos from Pixabay (https://pixabay.com/photos/rocks-coast-summer-summertime-sea-4375068/)
Image by Vicjo from Pixabay (https://pixabay.com/photos/bohol-philippines-asia-blue-nature-7491218/)
Image by WikiImages from Pixabay (https://pixabay.com/photos/hawaii-islands-island-chain-63111/)
Image by Ylvers from Pixabay (https://pixabay.com/photos/stockholm-archipelago-archipelago-393996/)
Image by allanjoyner from Pixabay (https://pixabay.com/photos/lake-island-summer-ontario-canada-4704354/)
Image by charloisporto from Pixabay (https://pixabay.com/photos/sunset-sun-ocean-island-horizon-1651878/)
Image by danutaniemiec from Pixabay (https://pixabay.com/photos/landscape-mountains-island-hills-4728840/)
Image by habunman from Pixabay (https://pixabay.com/photos/sea-coast-island-sodeung-island-6787087/)
Image by kienhau from Pixabay (https://pixabay.com/photos/bali-indonesia-kelingking-sea-7969001/)
Image by kostiolavi from Pixabay (https://pixabay.com/photos/lake-island-sunset-sun-sunlight-5963373/)
Image by manolofranco from Pixabay (https://pixabay.com/photos/nature-sea-aurora-borealis-lofoten-1032523/)
Image by ollivves from Pixabay (https://pixabay.com/photos/water-travel-ocean-nature-beach-3354063/)
Image by olliwittmann from Pixabay (https://pixabay.com/photos/eve-evening-europe-photography-9726477/)
Image by reijotelaranta from Pixabay (https://pixabay.com/photos/lake-ridge-punkaharju-finland-road-7415097/)
Image by reijotelaranta from Pixabay (https://pixabay.com/photos/sea-archipelago-islets-finland-7414940/)
Image by reijotelaranta from Pixabay (https://pixabay.com/photos/sea-archipelago-islets-finland-7415087/)
Image by xiSerge from Pixabay (https://pixabay.com/photos/island-waves-sunset-ocean-shore-7710290/)
Image by xiSerge from Pixabay (https://pixabay.com/photos/reinebringen-lofoten-norway-sea-9710168/)