Caerphilly North Premier Inn Turn off the M4 junction 28, and take the third exit from the roundabout to Risca. At the next roundabout, take a first left to Caerphilly, and then at the...   Caerphilly Premier Inn From the M42 at Junction 32, takr the A470 to Merthyr Tydfil. At junction 4 take the A468 to Caerphilly to the 5th roundabout. The Caerphilly Premier Travel Inn is...