In the morning, explore the Fontainhas area, a UNESCO World Heritage Site with its Portuguese-styled buildings and quaint alleyways. Then, visit the famous Church of Our Lady of Immaculate Conception, which is famous for its striking white exterior and grand staircase. Afternoon, head to the Salim Ali Bird Sanctuary, which is a protected area for migratory birds. In the evening, take a stroll along the Miramar Beach, one of the most peaceful beaches in Goa.
Morning, visit the Pandava Caves, a group of six rock-cut caves with intricate carvings. Afternoon, head to the Margao market, which is a buzzing market with local handicrafts, spices, and souvenirs. In the evening, visit the Monte Hill, which offers panoramic views of the city.
Morning, visit the Mapusa Friday Market, which is a bustling market with fresh produce, seafood, and local handicrafts. Afternoon, head to the Shri Bodgeshwar Temple, a Hindu temple famous for its beautiful architecture. In the evening, take a leisurely walk along the Calangute Beach, one of the busiest beaches in Goa.
Morning, explore the Basilica of Bom Jesus, a UNESCO World Heritage Site and one of the most famous churches in Goa. Afternoon, visit the Museum of Christian Art, which houses a vast collection of Christian artworks and artifacts. In the evening, take a walk around the Old Goa area and admire the picturesque Latin Quarter.
Aside from the itinerary, I would recommend visiting the Dudhsagar Waterfalls, a stunning waterfall located in the Bhagwan Mahaveer Wildlife Sanctuary. Additionally, a day trip to the nearby state of Karnataka can be a great way to maximize your trip. Mumbai and Bangalore are the nearest major cities and can be easily accessed by train or flight.