But if you’re not planning to be in the capital, there’s plenty going on elsewhere. Aberystwyth, Wrexham and Llandudno are among the places to witness flamboyant parades, and many of the country’s castles and heritage sites throw open their doors for free on the day.

One of them is the magnificent St Davids Bishop’s Palace, the lavish medieval design of Bishop Henry de Gower, built on the tip of the western coast and symbolising the power religious leaders held in his day. The ruin stands next to the imposing cathedral which was the Saint’s final resting place, and the surrounding streets – set in Britain’s smallest city – are the scenes for a fitting mini-festival in honour of their holiest former resident.

Oriel Gallery, Gwynedd, Snowdonia

Led by clergy, the annual Pilgrims’ Walk leads to the illumination of the St David’s Day Stone, ending at the spectacularly beautiful Oriely Parc, where you can wander around a traditional Welsh market, dance to live bands and even pick up some of the language from native speakers waiting to teach you the lingo. You might want to return to the cathedral at some point, because it’s said that two trips to it are the ecclesiastical equivalent of a pilgrimage to Rome.

Or if you’re further inland, take a look at the boisterous goings-on in Swansea, where a market and train rides along the coast accompany crafts at the city’s museum and the Get Welsh Food and Drink Festival, which is a tasty chance to find out why Wales can be particularly satisfied with some of its culinary creations over the centuries.