Oh, Trabzon is such a beautiful destination with a rich history and stunning natural landscapes! Here's an ideal itinerary for your 4-day trip:

Day 1:

• Morning: Start your day with a visit to the Hagia Sophia Museum, a former Byzantine church with impressive frescoes and mosaics.
• Afternoon: Explore the Atatürk Mansion, a historic building overlooking the Black Sea, and enjoy a leisurely stroll in its beautiful gardens.
• Evening: Head to Trabzon's city center for a delicious dinner at a local restaurant serving traditional Black Sea cuisine.

Day 2:

• Morning: Take a day trip to Sumela Monastery, a breathtaking cliffside monastery nestled in the Pontic Mountains. Don't forget to hike up to the viewpoint for stunning panoramic views.
• Afternoon: Visit Uzungöl, a picturesque lake surrounded by lush green forests. Enjoy a relaxing boat ride or hike around the area.
• Evening: Return to Trabzon and unwind with a cup of Turkish tea at a cozy café by the sea.

Day 3:

• Morning: Explore the Trabzon Castle, a medieval fortress with commanding views of the city and the Black Sea.
• Afternoon: Visit the Trabzon Museum to learn more about the region's history and culture, including artifacts from the Byzantine and Ottoman periods.
• Evening: Wander around Trabzon's bazaars and markets, where you can shop for local handicrafts, spices, and souvenirs.

Day 4:

• Morning: Take a scenic drive along the Black Sea coast to visit the charming village of Sürmene. Explore its traditional houses and enjoy a seafood lunch by the water.
• Afternoon: Relax on the beaches of Trabzon, such as Akçaabat or Araklı, and soak up the sun.
• Evening: End your trip with a farewell dinner at a seafood restaurant, savoring the flavors of the Black Sea.

I hope this itinerary gives you a taste of the beauty and culture of Trabzon! Enjoy your trip!