Easter is an annual Christian Festival of Remembrance
The Passover festival dates from about 4,000 years ago when Jewish people remember that God saved them from slavery in Egypt. Jesus was a Jew and so celebrated the Passover. Passover takes place in the first month of the Jewish New Year (14-15 of the month of Nisan). The Jewish calendar follows the cycle of the moon, so the date changes a bit every year.
From : http://www.whyeaster.com/customs/festivals.shtml
For a look at some Easter traditions around the world: http://www.womansday.com/life/travel-tips/g2175/easter-traditions/
Some other ideas for Easter: these books are available to borrow today from Rotorua District Library
Above all enjoy your family times and be safe this Easter