53 countries taking part in Tourism Ireland’s Global Greening initiative this St Patrick's Day

Rollerskaters in Paris carrying green glowsticks, cyclists in Amsterdam with green-illuminated wheels and start-up entrepreneurs pitching for funding in a green-lit ice hole in Finland - all part of St Patrick's Day celebrations globally.

Themed-events worldwide have gone from strength to strength following Tourism Ireland’s Global Greening initiative which started in 2010 when both the Sydney Opera House and the Sky Tower in Auckland turned shades of green in honour of Ireland's patron saint.