Another great choice would be Spain. The weather is good. If you want it to be quiet, you can pick any of the smaller towns to relax.
If your Easter break coincides with theirs, you could see some fantastic Holy Week processions. Seville is famous everywhere and gets an influx of tourists to see it. Valladolid and Zaragosa, in the north, are famous inside of Spain and have non-tourist crowds.
I experienced Holy Thursday in Zaragosa. It was one of the travel highlights of my life. There were 26 processions from early afternoon into the wee hours of the night. Each procession is done by a local civic group (think Elks club or similar), each has it's own colors and banner. Some are big and some are small. The biggest include upwards of 500-1000 people costumed as penitents from the inquisition or traditional Spanish mourning dresses, most with drums, but some carry candles, incense burners, floats, crosses, etc. It's loud, exiting and amazing. Between processions people head into bars and cafes for a beer and/or tapas. I saw other processions in other towns (Good Friday in Pamplona) but they were much more sedate. Barcelona has the least because they are the least religious. They have one procession on Good Friday put on by people who moved from Seville but it's not related to the local church.