Name | Prefecture | Municipality | Altitude | Area | Designated | Image | National park status | Coords. | Ref. |
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| | | 1–2 m | 1,607 ha | 1989 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web09.pdf |
| | | 3–7 m | 2,560 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web10.pdf |
| | | 1 m | 900 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web11.pdf |
| | | 850–900 m | 624 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web12.pdf |
| | | 0–10 m | 6,053 ha | 2005 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web13.pdf |
| | | 420 m | 1,318 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web14.pdf |
| | | 13 m | 41 ha | 2002 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web15.pdf |
| | | 1 m | 6,139 ha | 2005 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web16.pdf |
| | | 3–10 m | 7,863 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web17.pdf |
| | | 0–3 m | 2,504 ha | 1993 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web18.pdf |
| | | 0–20 m | 5,277 ha | 1993 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web19.pdf |
| | | 1–5 m | 510 ha | 1991 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web20.pdf |
| | | 1–5 m | 510 ha | 2012 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web21.pdf |
| | | 0–10 m | 222 ha | 2005 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web22.pdf |
| | | 7 m | 559 ha | 1985 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web23.pdf |
| | | 5.7 m | 423 ha | 2005 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web24.pdf |
| | | 25.9 m | 34 ha | 2008 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web25.pdf |
| | | 0 m | 5,793 ha | 2018 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web2018_05.pdf |
| | | 12 m | 39 ha | 2008 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web26.pdf |
| | | 0 m | 935 ha | 2015 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web27.pdf |
| | | 1400–2356 m | 8,711 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web28.pdf |
| | | 1400–1475 m | 260 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web29.pdf |
| | | 2–23 m | 2,861 ha | 2012 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web30.pdf |
| | | 1200–2160 m | 887 ha | 2015 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web31.pdf |
| | | 0 m | 40 ha | 1993 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web32.pdf |
| | | -4–4 m | 366 ha | 2018 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web2018_06.pdf |
| | | 8.6 m | 24 ha | 2008 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web33.pdf |
| | | 5 m | 76 ha | 1996 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web34.pdf |
| | | 1040–2120 m | 574 ha | 2012 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web35.pdf |
| | | 2.5–8 m | 10 ha | 1993 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web36.pdf |
| | | 45 m | 87 ha | 2012 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web37.pdf |
| | | 0 m | 1,110 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web38.pdf |
| | | 190–244 m | 22.5 ha | 2012 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web39.pdf |
| | | -4-1 m | 323 ha | 2002 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web40.pdf |
| | 10 cities | 86 m | 65,984 ha | 1993 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web41.pdf |
| | | 0–20 m | 1094 ha | 2012 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web2018_07.pdf |
| | | -20-0 m | 574 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web43.pdf |
| | | 0 m | 8,043 ha | 2005 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web44.pdf |
| | | 0.3 m | 7,652 ha | 2005 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web45.pdf |
| | | 0–80 m | 142 ha | 2012 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web46.pdf |
| | | 80–426 m | 563 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web47.pdf |
| | | -3-1 m | 218 ha | 2015 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web48.pdf |
| | | -3-1 m | 57 ha | 2015 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web49.pdf |
| | | 0 m | 754 ha | 2012 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web50.pdf |
| | | 1000–1270 m | 91 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web51.pdf |
| | | 296 m | 60 ha | 2005 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web52.pdf |
| | | | 478 ha | 2021 | | N/A | | https://rsis.ramsar.org/ris/2462 |
| | | <10 m | 10 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web53.pdf |
| | | 120–280 m | 255 ha | 2009 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web54.pdf |
| | | 0 m | 353 ha | 2005 | | | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web55.pdf |
| | | -0.5 m | 58 ha | 1999 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web56.pdf |
| | | 0 m | 704 ha | 2012 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web57.pdf |
| | | 0 m | 157 ha | 2005 | | N/A | | http://www.env.go.jp/en/nature/npr/ramsar_wetland/pamph/ramsarpamphen/RamsarSites_en_web58.pdf |
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