This is a list of Hydrovia's national holidays.
Random Day: Random Day is a day celebrating randomness in all forms and was the first holiday to be elected by the People. It has no set date, rather the date is selected randomly and announced on the first of January. The only exception to this rule is 2011, because Random Day was elected so late in the year.
Flag Day: Flag Day is the 22nd of October. It was that day in 2011 that the Hydrovian flag first flew over Hydrovian territory.
Tesla Day: Tesla Day is the 10th of July. This is Nikola Tesla's birthday. He was a Serbian electrical engineer who invented radio, alternating current, and wireless transfer of power among other things.
Pi Day: Pi Day is March 14th (3.14). On this day, we celebrate Pi and Pi-flavored pies.