Iolo Williams returns with his wildlife safari around Wales. He's in the Brecon Beacons to celebrate 50 years since it became a national park.

Iolo Williams goes on safari to some of the most beautiful landscapes of Wales. He visits South Stack on Anglesey, home to thousands of seabirds. Show more

Iolo Williams visits different wildlife areas of Wales. Hidden cameras watch red kites, choughs and others, and the public are invited to phone in with their nature sightings. Show more

Iolo Williams visits different wildlife areas of Wales to watch spring turn into summer. On Beeches Farm near the River Dee, many rare forms of wildlife make their seasonal homes. Show more

Iolo Williams visits different wildlife areas of Wales to watch the arrival of summer. The RSPB Reserve at Ynys Hir in West Wales provides a rich habitat for many species of wildlife. Show more

In mid-Wales, the Elan Valley offers many habitats - mountain, moorland, deciduous woodland, reservoirs and rivers for all kinds of wildlife. Show more

Iolo Williams visits Roath Park and Lake, in the heart of Cardiff - a haven for all sorts of wildlife, including gulls, swans, geese and snails. Show more

Iolo is at the Rhydymwyn Valley nature reserve near Mold. Formerly a wartime munitions factory, the site has been transformed into a wildlife sanctuary. Show more

Iolo Williams is on a wildlife safari around Wales. On this stage he drops in on the beautiful Bardsey Island and the Llyn Peninsula. Show more

Iolo Williams is on a wildlife safari around Wales. Show more

Iolo looks at the natural world of Swansea and the Gower. He finds out about native lizards, explores rockpools and seeks out the city's hidden wildlife. Show more

As the safari reaches the Coed y Brenin forest outside Dolgellau, Iolo spends the night in a hide watching for nocturnal wildlife, and tries an odd form of fishing. Show more

Iolo Williams continues his wildlife safari around Wales. This time he visits New Quay and goes in search of bottlenose dolphins in Cardigan Bay. Show more

Iolo Williams explores the wildlife of the Rhydymwyn Valley nature reserve in Flintshire, which used to be a wartime munitions and mustard gas factory.

Naturalist Iolo Williams travels to Bardsey Island to get a closer look at sea birds, seals and other animals that inhabit the island.

Iolo Williams visits the National Wetlands Centre Wales, near Llanelli and looks at the waterfowl and water voles now found here.

Iolo Williams returns to follow the trail of the best wildlife in Wales, this week visiting the RSPB reserve at Conwy.

Iolo Williams returns to follow the trail of the best wildlife in Wales. This week, he is in the Dolydd Hafren reserve just outside Montgomery in mid-Wales.

Iolo Williams follows the trail of wildlife in Wales. He travels to the Parc Slip reserve near Bridgend, once an opencast coal mine, now a haven for wildlife.

Iolo Williams follows the trail of the best wildlife in Wales. He takes to a boat to explore the islands of Skomer, Stokholm and Grassholm on the Pembrokeshire coast.