# National nature reserves in Wales

National nature reserves in Wales are selected and designated by Natural Resources Wales (NRW) (formerly the Countryside Council for Wales). There are 76 reserves all of which are also SSSIs, they cover 26,536 hectares (265.36 km$^2$), or less than 1.5% of the land area of Wales. They range in size from Dan yr Ogof at 0.5 hectares (5,000 m$^2$) to Berwyn which covers 7,920 hectares (79.2 km$^2$) . A national nature reserve is designated because of its special biological, geological, habitat or landscape value and most in Wales are open to the public. They include upland and lowland areas, several offshore islands and in some cases estuarine and intertidal zones.

## Management

Although the majority of sites are managed by NRW, a number are managed by other bodies, mainly in the public and wildlife charity sectors, including:
* Bardsey Island Trust
* Caerphilly County Borough Council
* Forestry Commission
* Montgomeryshire Wildlife Trust
* National Botanic Garden of Wales
* The National Showcaves Centre for Wales
* National Trust
* Natural England
* North Wales Wildlife Trust
* RSPB
* University of Wales
* Wildlife Trust of South and West Wales
* Woodland Trust

## List of national nature reserves in Wales

| Name | Location | Established | Area | Manager |
| Aberbargoed Grasslands | Caerphilly 51°41′10″N 3°12′40″W﻿ / ﻿51.686°N 3.211°W﻿ / 51.686; -3.211 | 14 June 2012 | 42.28 hectares (104.5 acres) | Caerphilly County Borough Council |
| Allt Rhyd y Groes | Carmarthenshire 52°07′05″N 3°48′43″W﻿ / ﻿52.118°N 3.812°W﻿ / 52.118; -3.812 | 24 February 1983 | 69.71 hectares (172.3 acres) | NRW |
| Allt y Benglog | Gwynedd 52°47′31″N 3°46′12″W﻿ / ﻿52.792°N 3.770°W﻿ / 52.792; -3.770 | 26 April 1994 | 11.51 hectares (28.4 acres) | NRW |
| Berwyn | Denbighshire, Gwynedd, Powys 52°49′55″N 3°29′56″W﻿ / ﻿52.832°N 3.499°W﻿ / 52.832; -3.499 | 18 March 1999 | 7,919.76 hectares (19,570.2 acres) | NRW |
| Cadair Idris | Gwynedd 52°41′38″N 3°53′46″W﻿ / ﻿52.694°N 3.896°W﻿ / 52.694; -3.896 | 6 January 1983 | 436.76 hectares (1,079.3 acres) | NRW |
| Carmel | Carmarthenshire 51°49′37″N 4°02′28″W﻿ / ﻿51.827°N 4.041°W﻿ / 51.827; -4.041 | 24 July 1999 | 85.19 hectares (210.5 acres) | NRW |
| Ceunant Cynfal | Gwynedd 52°57′04″N 3°55′37″W﻿ / ﻿52.951°N 3.927°W﻿ / 52.951; -3.927 | 26 April 1994 | 2.73 hectares (6.7 acres) | NRW |
| Ceunant Llennyrch | Gwynedd 52°55′23″N 3°59′20″W﻿ / ﻿52.923°N 3.989°W﻿ / 52.923; -3.989 | 19 March 2018 | 329.24 hectares (813.6 acres) | NRW |
| Claerwen | Ceredigion, Powys 52°18′18″N 3°43′01″W﻿ / ﻿52.305°N 3.717°W﻿ / 52.305; -3.717 | 21 July 1994 | 793.40 hectares (1,960.5 acres) | NRW |
| Coed Camlyn | Gwynedd 52°56′17″N 3°59′35″W﻿ / ﻿52.938°N 3.993°W﻿ / 52.938; -3.993 | 3 June 1969 | 63.57 hectares (157.1 acres) | NRW |
| Coed Cymerau | Gwynedd 52°57′58″N 3°57′18″W﻿ / ﻿52.966°N 3.955°W﻿ / 52.966; -3.955 | 29 August 1992 | 26.30 hectares (65.0 acres) | NRW |
| Coed Dolgarrog | Conwy 53°10′59″N 3°50′46″W﻿ / ﻿53.183°N 3.846°W﻿ / 53.183; -3.846 | 20 April 1959 | 67.37 hectares (166.5 acres) | NRW |
| Coed Ganllwyd | Gwynedd 52°48′00″N 3°53′42″W﻿ / ﻿52.800°N 3.895°W﻿ / 52.800; -3.895 | 2 April 1963 | 23.57 hectares (58.2 acres) | National Trust |
| Coed Gorswen | Conwy 53°13′12″N 3°51′58″W﻿ / ﻿53.220°N 3.866°W﻿ / 53.220; -3.866 | 20 April 1959 | 13.57 hectares (33.5 acres) | NRW |
| Coed Rheidol | Ceredigion 52°23′10″N 3°52′16″W﻿ / ﻿52.386°N 3.871°W﻿ / 52.386; -3.871 | 7 February 1994 | 165.91 hectares (410.0 acres) | NRW |
| Coed Tremadog | Gwynedd 52°56′24″N 4°08′31″W﻿ / ﻿52.940°N 4.142°W﻿ / 52.940; -4.142 | 18 April 1958 | 2.64 hectares (6.5 acres) | NRW |
| Coed y Cerrig | Monmouthshire 51°53′02″N 3°01′44″W﻿ / ﻿51.884°N 3.029°W﻿ / 51.884; -3.029 | 12 February 1988 | 10.38 hectares (25.6 acres) | NRW |
| Coed y Rhygen | Gwynedd 52°54′50″N 3°57′54″W﻿ / ﻿52.914°N 3.965°W﻿ / 52.914; -3.965 | 3 June 1969 | 27.78 hectares (68.6 acres) | NRW |
| Coedmor | Ceredigion, Pembrokeshire 52°03′47″N 4°37′59″W﻿ / ﻿52.063°N 4.633°W﻿ / 52.063; -4.633 | 5 July 1991 | 46.12 hectares (114.0 acres) | NRW |
| Coedydd Aber | Gwynedd 53°13′05″N 4°00′07″W﻿ / ﻿53.218°N 4.002°W﻿ / 53.218; -4.002 | 4 March 1982 | 166.46 hectares (411.3 acres) | NRW |
| Coedydd Maentwrog | Gwynedd 52°57′18″N 3°58′59″W﻿ / ﻿52.955°N 3.983°W﻿ / 52.955; -3.983 | 26 April 1966 | 68.32 hectares (168.8 acres) | NRW |
| Cors Bodeilio | Anglesey 53°16′19″N 4°14′53″W﻿ / ﻿53.272°N 4.248°W﻿ / 53.272; -4.248 | 22 Mawrth 2013 | 41.53 hectares (102.6 acres) | NRW |
| Cors Caron | Ceredigion 52°15′18″N 3°55′19″W﻿ / ﻿52.255°N 3.922°W﻿ / 52.255; -3.922 | 22 January 1981 | 839.75 hectares (2,075.1 acres) | NRW |
| Cors Erddreiniog | Anglesey 53°18′43″N 4°17′49″W﻿ / ﻿53.312°N 4.297°W﻿ / 53.312; -4.297 | 22 March 2013 | 250.26 hectares (618.4 acres) | NRW |
| Cors Geirch | Gwynedd 52°54′14″N 4°30′54″W﻿ / ﻿52.904°N 4.515°W﻿ / 52.904; -4.515 | 22 March 2013 | 122.49 hectares (302.7 acres) | NRW |
| Cors Goch | Anglesey 53°18′22″N 4°15′22″W﻿ / ﻿53.306°N 4.256°W﻿ / 53.306; -4.256 | 15 June 1995 | 52.72 hectares (130.3 acres) | North Wales Wildlife Trust |
| Cors Goch Llanllwch | Carmarthenshire 51°50′31″N 4°22′26″W﻿ / ﻿51.842°N 4.374°W﻿ / 51.842; -4.374 | 23 July 1996 | 18.42 hectares (45.5 acres) | Wildlife Trust South and West Wales |
| Cors Gyfelog | Gwynedd 53°00′25″N 4°17′49″W﻿ / ﻿53.007°N 4.297°W﻿ / 53.007; -4.297 | 22 March 2013 | 36.97 hectares (91.4 acres) | NRW |
| Cors y Llyn | Powys 52°11′13″N 3°26′28″W﻿ / ﻿52.187°N 3.441°W﻿ / 52.187; -3.441 | 27 February 1987 | 25.12 hectares (62.1 acres) | NRW |
| Corsydd Llangloffan | Pembrokeshire 51°56′42″N 5°03′00″W﻿ / ﻿51.945°N 5.050°W﻿ / 51.945; -5.050 | 5 July 1991 | 38.93 hectares (96.2 acres) | NRW |
| Craig Cerrig Gleisiad a Fan Frynych | Powys 51°53′28″N 3°31′05″W﻿ / ﻿51.891°N 3.518°W﻿ / 51.891; -3.518 | 1 November 2002 | 488.38 hectares (1,206.8 acres) | NRW |
| Craig y Cilau | Powys 51°50′10″N 3°10′41″W﻿ / ﻿51.836°N 3.178°W﻿ / 51.836; -3.178 | 23 September 1959 | 64.82 hectares (160.2 acres) | NRW |
| Crymlyn Bog & Pant y Sais | Neath Port Talbot, Swansea 51°37′59″N 3°52′59″W﻿ / ﻿51.633°N 3.883°W﻿ / 51.633; -3.883 | 27 September 1991 | 130.83 hectares (323.3 acres) | NRW |
| Cwm Cadlan | Rhondda Cynon Taf 51°46′26″N 3°30′32″W﻿ / ﻿51.774°N 3.509°W﻿ / 51.774; -3.509 | 3 March 2006 | 32.93 hectares (81.4 acres) | NRW |
| Cwm Clydach | Blaenau Gwent, Monmouthshire 51°48′18″N 3°08′06″W﻿ / ﻿51.805°N 3.135°W﻿ / 51.805; -3.135 | 3 February 2012 | 30.65 hectares (75.7 acres) | NRW |
| Cwm Glas Crafnant | Conwy 53°07′12″N 3°53′31″W﻿ / ﻿53.120°N 3.892°W﻿ / 53.120; -3.892 | 19 July 1960 | 15.02 hectares (37.1 acres) | NRW |
| Cwm Idwal | Conwy, Gwynedd 53°06′40″N 4°01′48″W﻿ / ﻿53.111°N 4.030°W﻿ / 53.111; -4.030 | 24 November 1954 | 403.30 hectares (996.6 acres) | NRW |
| Dan yr Ogof | Powys 51°49′48″N 3°41′17″W﻿ / ﻿51.830°N 3.688°W﻿ / 51.830; -3.688 | 2 April 2004 | 0.52 hectares (1.3 acres) | The National Showcaves Centre |
| Dinefwr Park | Carmarthenshire 51°52′44″N 4°00′58″W﻿ / ﻿51.879°N 4.016°W﻿ / 51.879; -4.016 | 13 July 2007 | 224.53 hectares (554.8 acres) | National Trust |
| Dyfi | Ceredigion, Gwynedd 52°31′44″N 4°00′54″W﻿ / ﻿52.529°N 4.015°W﻿ / 52.529; -4.015 | 24 November 1992 | 2,290.36 hectares (5,659.6 acres) | NRW |
| Fenn's, Whixall & Bettisfield Mosses | Wrexham, Shropshire 52°55′37″N 2°45′43″W﻿ / ﻿52.927°N 2.762°W﻿ / 52.927; -2.762 | 1 May 2021 | 583.94 hectares (1,442.9 acres) | Natural England |
| Fiddlers Elbow | Monmouthshire 51°49′16″N 2°41′10″W﻿ / ﻿51.821°N 2.686°W﻿ / 51.821; -2.686 | 15 November 2017 | 28.34 hectares (70.0 acres) | Woodland Trust |
| Gower Coast | Swansea 51°33′32″N 4°16′52″W﻿ / ﻿51.559°N 4.281°W﻿ / 51.559; -4.281 | 6 February 2002 | 92.17 hectares (227.8 acres) | National Trust |
| Grassholm Island | Pembrokeshire 51°43′52″N 5°28′44″W﻿ / ﻿51.731°N 5.479°W﻿ / 51.731; -5.479 | 23 July 1996 | 10.77 hectares (26.6 acres) | RSPB |
| Gregynog | Powys 52°33′58″N 3°21′07″W﻿ / ﻿52.566°N 3.352°W﻿ / 52.566; -3.352 | 6 March 2013 | 214.17 hectares (529.2 acres) | University of Wales |
| Hafod Elwy Moor | Denbighshire 53°05′38″N 3°34′19″W﻿ / ﻿53.094°N 3.572°W﻿ / 53.094; -3.572 | 5 October 1999 | 82.96 hectares (205.0 acres) | NRW |
| Hafod Garregog | Gwynedd 52°58′41″N 4°05′02″W﻿ / ﻿52.978°N 4.084°W﻿ / 52.978; -4.084 | 15 April 1987 | 86.70 hectares (214.2 acres) | National Trust |
| Kenfig Pool and Dunes | Bridgend, Neath Port Talbot 51°31′23″N 3°44′31″W﻿ / ﻿51.523°N 3.742°W﻿ / 51.523; -3.742 | 23 May 1989 | 513.72 hectares (1,269.4 acres) | NRW |
| Lady Park Wood (EN) | Gloucestershire, Monmouthshire 51°49′37″N 2°39′29″W﻿ / ﻿51.827°N 2.658°W﻿ / 51.827; -2.658 | 21 November 1985 | 37.86 hectares (93.6 acres) | Forestry Commission (England) |
| Llyn Eiddwen | Ceredigion 52°16′55″N 4°02′38″W﻿ / ﻿52.282°N 4.044°W﻿ / 52.282; -4.044 | 23 July 1996 | 11.53 hectares (28.5 acres) | Wildlife Trust South and West Wales |
| Maes-y-Facrell, Pen y Gogarth | Conwy 53°19′41″N 3°50′46″W﻿ / ﻿53.328°N 3.846°W﻿ / 53.328; -3.846 | 26 February 2009 | 5.22 hectares (12.9 acres) | NRW |
| Merthyr Mawr Warren | Bridgend 51°28′48″N 3°38′24″W﻿ / ﻿51.480°N 3.640°W﻿ / 51.480; -3.640 | 3 July 2002 | 324.23 hectares (801.2 acres) | NRW |
| Morfa Dyffryn | Gwynedd 52°47′56″N 4°08′06″W﻿ / ﻿52.799°N 4.135°W﻿ / 52.799; -4.135 | 18 January 1962 | 197.37 hectares (487.7 acres) | NRW |
| Morfa Harlech | Gwynedd 52°53′53″N 4°07′19″W﻿ / ﻿52.898°N 4.122°W﻿ / 52.898; -4.122 | 9 October 1981 | 880.73 hectares (2,176.3 acres) | NRW |
| Nant Irfon | Powys 52°10′23″N 3°41′49″W﻿ / ﻿52.173°N 3.697°W﻿ / 52.173; -3.697 | 8 December 1983 | 137.57 hectares (339.9 acres) | NRW |
| Newborough Warren & Ynys Llanddwyn | Anglesey 53°09′07″N 4°22′23″W﻿ / ﻿53.152°N 4.373°W﻿ / 53.152; -4.373 | 2 December 1992 | 1,556.43 hectares (3,846.0 acres) | NRW |
| Newport Wetlands | Newport 51°32′13″N 2°56′28″W﻿ / ﻿51.537°N 2.941°W﻿ / 51.537; -2.941 | 16 April 2008 | 865.72 hectares (2,139.2 acres) | NRW |
| Ogof Ffynnon Ddu | Powys 51°49′34″N 3°38′35″W﻿ / ﻿51.826°N 3.643°W﻿ / 51.826; -3.643 | 1 Mawrh 1993 | 417.97 hectares (1,032.8 acres) | NRW |
| Oxwich | Swansea 51°33′58″N 4°09′14″W﻿ / ﻿51.566°N 4.154°W﻿ / 51.566; -4.154 | 15 November 2017 | 228.49 hectares (564.6 acres) | NRW |
| Pengelli Forest | Pembrokeshire 52°01′08″N 4°43′34″W﻿ / ﻿52.019°N 4.726°W﻿ / 52.019; -4.726 | 27 July 1995 | 65.94 hectares (162.9 acres) | Wildlife Trust South and West Wales |
| Penhow Woodlands | Monmouthshire, Newport 51°36′25″N 2°50′20″W﻿ / ﻿51.607°N 2.839°W﻿ / 51.607; -2.839 | 15 November 1984 | 24.04 hectares (59.4 acres) | NRW |
| Ramsey | Pembrokeshire 51°51′54″N 5°20′24″W﻿ / ﻿51.865°N 5.340°W﻿ / 51.865; -5.340 | 23 July 1996 | 281.56 hectares (695.7 acres) | RSPB |
| Rhinog | Gwynedd 52°50′24″N 3°59′06″W﻿ / ﻿52.840°N 3.985°W﻿ / 52.840; -3.985 | 1 December 1970 | 592.39 hectares (1,463.8 acres) | NRW |
| Rhos Goch | Powys 52°07′37″N 3°10′30″W﻿ / ﻿52.127°N 3.175°W﻿ / 52.127; -3.175 | 27 February 1987 | 45.21 hectares (111.7 acres) | NRW |
| Rhos Llawr Cwrt | Ceredigion 52°07′19″N 4°19′08″W﻿ / ﻿52.122°N 4.319°W﻿ / 52.122; -4.319 | 24 November 1992 | 58.73 hectares (145.1 acres) | NRW |
| Roundton Hill | Powys 52°32′49″N 3°02′31″W﻿ / ﻿52.547°N 3.042°W﻿ / 52.547; -3.042 | 31 May 2000 | 33.45 hectares (82.7 acres) | Montgomeryshire Wildlife Trust |
| Skokholm | Pembrokeshire 51°41′49″N 5°16′37″W﻿ / ﻿51.697°N 5.277°W﻿ / 51.697; -5.277 | 6 December 2008 | 98.49 hectares (243.4 acres) | Wildlife Trust South and West Wales |
| Skomer | Pembrokeshire 51°44′10″N 5°17′35″W﻿ / ﻿51.736°N 5.293°W﻿ / 51.736; -5.293 | 2 April 1963 | 306.56 hectares (757.5 acres) | Wildlife Trust South and West Wales |
| Stackpole | Pembrokeshire 51°36′54″N 4°54′58″W﻿ / ﻿51.615°N 4.916°W﻿ / 51.615; -4.916 | 8 March 1995 | 232.79 hectares (575.2 acres) | NRW and National Trust |
| Stanner Rocks | Powys 52°13′08″N 3°04′44″W﻿ / ﻿52.219°N 3.079°W﻿ / 52.219; -3.079 | 18 February 1981 | 5.42 hectares (13.4 acres) | NRW |
| Tŷ Canol | Pembrokeshire 51°59′49″N 4°46′44″W﻿ / ﻿51.997°N 4.779°W﻿ / 51.997; -4.779 | 22 September 1986 | 70.11 hectares (173.2 acres) | NRW |
| Waun Las | Carmarthenshire 51°50′31″N 4°08′13″W﻿ / ﻿51.842°N 4.137°W﻿ / 51.842; -4.137 | 7 August 2008 | 150.14 hectares (371.0 acres) | National Botanic Garden of Wales |
| Whiteford | Swansea 51°38′02″N 4°14′35″W﻿ / ﻿51.634°N 4.243°W﻿ / 51.634; -4.243 | 26 April 1966 | 806.05 hectares (1,991.8 acres) | NRW and National Trust |
| Ynys Enlli | Gwynedd 52°45′32″N 4°47′24″W﻿ / ﻿52.759°N 4.790°W﻿ / 52.759; -4.790 | 24 March 1986 | 178.64 hectares (441.4 acres) | Bardsey Island Trust |
| Yr Eifl | Gwynedd 52°58′08″N 4°25′52″W﻿ / ﻿52.969°N 4.431°W﻿ / 52.969; -4.431 | 22 March 2013 | 39.25 hectares (97.0 acres) | NRW |
| Yr Wyddfa | Gwynedd 53°03′29″N 4°02′56″W﻿ / ﻿53.058°N 4.049°W﻿ / 53.058; -4.049 | 26 April 1966 | 1,671.76 hectares (4,131.0 acres) | NRW |