Here are a few suggestions for your next trip from Castleknock

In 2 hours, you can reach Dublino, Dún Laoghaire, Drogheda, Dundalk, Bray.

In 3 hours, you can reach Waterford, Cardiff.

In 4 hours, you can reach Cork, Limerick, Galway, Belfast.

In 5 hours, you can reach Bristol, Ennis.

In 6 hours, you can reach Londra.

In 7 hours, you can reach Manchester.