Best for wildlife

 
Castle Meadows 
It’s a birdwatching bonanza on this stretch of the Abergavenny Riverside walk. The banks of the river Usk are home to colonies of aerobatic sand martins, along with brightly coloured kingfishers and goosanders. 
 
Talybont Reservoir
It may be man-made, but this 318-acre (129ha) stretch of water is a haven for wildlife. As you pass on the walk from Bwlch to Tor y Foel, keep your eyes peeled for water birds like pochard, tufted duck, mallard and teal.
 
Craig Cerrig-Gleisiad
Known for unusual alpine-arctic plants like purple saxifrage and serrated wintergreen – found here at their southernmost extreme in the UK – craggy Craig Cerrig-Gleisiad is a natural highlight of both the Glyn Tarrell Geotrail and the Storey Arms to Visitor Centre walks.
 
Traeth Mawr and Traeth Fach
These neighbouring marshlands en route to Cefn Llechid form part of a Site of Special Scientific Interest thanks to their natural bounty. As well as unusual bog plants and colourful dragonflies, you may spot birds like snipes, curlews and lapwings.
 
Mynydd Illtud
Explore this undulating common on the walk from the Visitor Centre and you can expect to spot fork-tailed red kites wheeling in the sky above. Also watch out for colourful butterflies and birds like larks and wheatears.