Choosing a country for a honeymoon in winter can be a challenging task, as there are many factors to consider, such as budget, weather, activities, and preferences. However, some of the most popular and romantic destinations for couples are:

- Switzerland: This alpine country offers stunning scenery, cozy chalets, and world-class skiing. You can also enjoy the cultural diversity, chocolate, cheese, and watches that Switzerland is famous for.

- Maldives: If you prefer a tropical paradise, the Maldives is a perfect choice. You can stay in an overwater villa, snorkel or dive in the crystal-clear water, and relax on the white-sand beaches. The Maldives is also known for its luxury resorts, spas, and cuisine.

- Japan: Japan is a fascinating country that combines tradition and modernity. You can explore the ancient temples, gardens, and castles, as well as the vibrant cities, shopping, and entertainment. Japan also has some of the best hot springs, or onsen, where you can soak in the mineral-rich water and enjoy the views.

- New Zealand: New Zealand is a land of adventure and natural beauty. You can experience the diverse landscapes, from glaciers and volcanoes to forests and beaches. You can also try some of the thrilling activities, such as bungee jumping, skydiving, or rafting. New Zealand is also home to the Maori culture, which you can learn more about through tours and shows.