Recommendations for April

Hello everyone

We are planning our honeymoon for next April. We both don't want to spend a huge amount of money, so we would like to stay in europe, we're from western europe. Any recommendations? Import to us is some nice nature, doesn't need to be on beaches. We also like seeing some nice cities and villages. We thought about croatia so far but we are very open for other recommendations. Every tip is much apreciated.