Switzerland is a beautiful country with so much to see and do. Here's an ideal itinerary for 4 days in Switzerland:

Day 1: Arrival in Zurich

• Arrive in Zurich and check into your hotel
• Take a stroll around the city center and explore the charming old town
• Visit the famous Bahnhofstrasse, one of the world's most expensive shopping streets
• Enjoy a delicious Swiss dinner at a local restaurant

Day 2: Lucerne and Mount Pilatus

• Take a train from Zurich to Lucerne, a picturesque city located on the shores of Lake Lucerne
• Explore the city's historic landmarks such as Chapel Bridge and Lion Monument
• Take a scenic boat ride on Lake Lucerne and enjoy the stunning views of the surrounding mountains
• Take a cogwheel train up to Mount Pilatus, one of the highest peaks in the region, and enjoy panoramic views of the Alps
• Return to Zurich in the evening

Day 3: Interlaken and Jungfraujoch

• Take a train from Zurich to Interlaken, a charming town located between two lakes
• Take a cable car up to Grindelwald First and enjoy the breathtaking views of the Eiger, Mönch, and Jungfrau mountains
• Take a train up to Jungfraujoch, the highest railway station in Europe, and enjoy the stunning views of the Aletsch Glacier
• Return to Interlaken in the evening and enjoy a traditional Swiss fondue dinner

Day 4: Geneva and Montreux

• Take a train from Zurich to Geneva, a cosmopolitan city located on the shores of Lake Geneva
• Visit the United Nations headquarters and the iconic Jet d'Eau fountain
• Take a train to Montreux, a charming town located on the shores of Lake Geneva
• Visit Chillon Castle, a medieval fortress that inspired Lord Byron's famous poem "The Prisoner of Chillon"
• Return to Zurich in the evening

This itinerary will give you a taste of Switzerland's stunning natural beauty, rich history, and vibrant culture. Enjoy your trip!