In the morning, visit the Salim Ali Bird Sanctuary to witness the beautiful birds and other wildlife. In the afternoon, visit the nearby Chorao Island where you can hire a local guide for a nature walk around the island. In the evening, head to the nearby Mangrove Forest for a serene boat ride amidst the mangroves.
Start your day early and head to the Dudhsagar Falls. The drive to the falls is scenic and will take you through lush green forests and picturesque villages. Spend the morning admiring the falls and swimming in the natural pools. In the afternoon, head to the Bhagwan Mahavir Wildlife Sanctuary which is a short drive from the falls. Explore the sanctuary on foot and you might spot some wildlife. In the evening, visit the Tambdi Surla Temple which is located within the sanctuary and is a beautiful example of ancient Indian architecture.
Other attractions that you can consider visiting are the Cotigao Wildlife Sanctuary, Divar Island, and the Mollem National Park. For a side trip, you can also visit the neighbouring state of Karnataka and explore the Western Ghats. To maximise your fun, try to plan your visit during the monsoon season (June-September) when Goa comes to life with lush greenery and cascading waterfalls. Make sure to pack rain gear and insect repellent. Don't forget to try the local cuisine and seafood.