Dubrovnik is a beautiful city with so much to see and do. Here's an ideal itinerary for 3 days in Dubrovnik:

Day 1:

• Start your day by exploring the Old Town, which is a UNESCO World Heritage Site. Walk along the Stradun, the main street of the Old Town, and admire the beautiful architecture.
• Visit the Rector's Palace, which was once the seat of power in Dubrovnik. The palace now houses a museum that showcases the city's history.
• Take a walk along the city walls, which offer stunning views of the Adriatic Sea and the surrounding area.
• End your day by watching the sunset from Mount Srđ, which can be reached by cable car.

Day 2:

• Take a boat tour to the nearby island of Lokrum, which is home to a beautiful botanical garden and a monastery.
• Visit the Dubrovnik Cathedral, which is located in the heart of the Old Town. The cathedral features beautiful Baroque architecture and houses many works of art.
• Explore the Franciscan Monastery, which is one of the oldest buildings in Dubrovnik. The monastery features a beautiful cloister and a pharmacy that has been in operation since the 14th century.
• End your day by enjoying some local cuisine at one of the many restaurants in the Old Town.

Day 3:

• Take a day trip to the nearby town of Cavtat, which is known for its beautiful beaches and charming old town.
• Visit the Dubrovnik Aquarium, which is located near the Old Town. The aquarium features a variety of marine life, including sharks, sea turtles, and colorful fish.
• Take a stroll through the Gradac Park, which offers stunning views of the Old Town and the Adriatic Sea.
• End your day by taking a sunset cruise along the coast, which will give you a unique perspective of Dubrovnik from the water.

I hope this itinerary helps you plan your trip to Dubrovnik!