By Sea
Regular ferry services operate between Holyhead and Ireland, Dublin and Dun Laoghaire, and is provided by two carriers. Stenaline (http://www.stenaline.co.uk) and Irish Ferries (http://www.irishferries.ie) both offer multiple daily service between the two ports for passengers and vehicles. Services to Dublin run daily, while Stenalines' service between Holyhead and Dun Laoghaire is now seasonal, only running between late March/early April and early September. Bookings can be made through their respective websites.
By car
The main roads into North Wales from England are the A55 which runs along the north coast, connecting with the M56 and M53 near Chester, and the A5, which leaves the M54 at Shrewsbury and heads west to Betws y Coed and then north-west to Bangor.
From South and Mid Wales the A470 runs south to north through the centre of the country, from Cardiff to Llandudno via Dolgellau and Betws y Coed, while the A483 runs south-west to north-east, from Swansea to Wrexham and on across the border to Chester. The A487 runs along the coast to Aberystwyth, Cardigan and St. Davids.
Note that only the A55 is a dual carriageway, and that overtaking on the other A-roads is not always possible. If time is of the essence, it is generally a good idea to travel on the A55 as far as possible. If not, the other roads are much more scenic.
By plane
An air service connecting RAF Valley in Anglesey to Cardiff International Airport in South Wales has recently opened charging £50 each way, and the journey takes about an hour (http://www.manx2.com/). For flights from other destinations Manchester and Liverpool airports, across the border in England are the closest bet, or Birmingham airport for the Cambrian Coast area.
By Rail
Mainline train services within North Wales are run by Arriva Trains Wales (http://www.arrivatrainswa...).
The North to South Wales Mainline Links Cardiff with Shrewsbury, Wrexham and the North Wales coast, via Chester. Services are operated by Arriva Trains Wales from Cardiff to Holyhead, with Virgin Trains operating services from Wrexham to London.
The North Wales Coast Line links Manchester, Crewe and London in England with the northern seaside resorts of Rhyl and Prestatyn, the city of Bangor, the isle of Anglesey and the port of Holyhead. Through tickets to Dublin Ireland are available, which include the ferry from Holyhead to Dun Laoghaire. Services are run by Arriva from Manchester and Virgin Trains from London and Crewe
The beautiful Cambrian Coast Line runs from Shrewsbury in England, across Mid-Wales through Machynlleth, and through the coastal towns of Tywyn and Barmouth, through the south part of Snowdonia, Harlech and Porthmadog, and along the south coast of the Lleyn Peninsula to Pwllheli.
The Chester to Birmingham Line Is operated by Arriva and sees hourly services from Chester to Birmingham via all mainline stations in Wrexham County.
The Borderlands Line runs between Wrexham and Bidston Birkenhead, linking various Flintshire towns and villages with the Wirral, and Wrexham.