4 May 2012
Last updated at 08:48
The Dee Estuary is Wales' largest estuary for wintering birds with 120,000 waterfowl arriving every winter including curlew, black-tailed godwit, knot, redshank and pink-footed geese.
Talacre Dunes is home to Wales' only colony of rare natterjack toads which became extinct here in the 1960s and successfully re-introduced in 2003. The the call of the male toads can be heard from several miles away.
Gronant dunes is home to Wales' only breeding colony of little terns which are monitored throughout the breeding season. Little terns are the smallest terns in Britain and an Amber List species in decline across Europe.
The dunes at Newborough beach on Anglesey are home to rare plants such as marsh helleborine and early marsh orchid. The forest contains one of the largest raven colonies in Britain which once numbered 2,000 birds.
During the breeding season up to 3,000 guillemots and 700 razorbills nest on the narrow ledges at South Stack on Anglesey. By the end of July, the birds are already leaving for open-ocean where they will spend the winter.
The Great Orme is a limestone headland with limestone grassland and heath habitat supporting rare species of butterfly. The feral Kashmir goats which roam here descend from a herd originally given to George IV.
Rhyl has become an unlikely spot to see rare snow bunting which arrive from Scotland and the Arctic during the depths of winter. They are a scare breeding species in Britain making them an Amber List species.
Aberystwyth Pier is one of the best places in Wales to watch starling 'murmurations'. In autumn, up to 10,000 starlings put on an aerial display in the skies above the pier before settling down to roost.
Cors Fochno is one of the finest examples of raised peat bogs in Britain with an environmental archive stretching back over 6,000 years. Rare carnivorous plants such as the greater sundew drosera anglic exist here.
Along one of the least walked sections of the Ceredigion coast path are the steep slopes of Penderi Cliffs with its ancient, 'hanging oak woodlands'. These sessile oaks have been stunted by their exposed location.
Every summer, Skomer Island is visited by 10-12,000 pairs of puffins and up to 120,000 breeding pairs of Manx shearwaters, making it one of the largest colonies in the world. The Skomer vole is endemic to the island.
Gower became the UK's first area of Outstanding Natural Beauty in 1956. Worm's Head on Gower derives its name from the Norse word 'orm' or 'wurm' meaning dragon.
Three quarters of the UK chough population are found in Pembrokshire. Ramsey Island near St David's is a stronghold for these colourful corvids. Their Welsh name, 'brân goesgoch' means red-legged crow.
Newport Wetlands was built in 2000 following the loss of habitat when Cardiff Bay Barrage was created. It now attracts a wide range of wildlife including water voles, otters, little egrets and a variety of wading birds.
The Gwent Levels is one of the largest surviving areas of ancient grazing marshes and a stronghold for one of the UK's rarest bees, the shrill carder bee as well as the rare rootless duckweed (Wolffia arrihiza).