Sure, I can provide you with a sample itinerary for a South Goa tour. Keep in mind that you can always customize it to suit your preferences and interests.

Arrival in Goa and Relaxation

Arrive at the Dabolim Airport or the Madgaon Railway Station in South Goa.
Check-in at your hotel or resort and take some time to relax and freshen up.
Head out to explore the nearby beaches such as Colva or Benaulim, where you can indulge in water sports, sunbathing, or just take a leisurely stroll along the coastline.
In the evening, explore the local markets and try some traditional Goan cuisine.
Visit Historical Sites and Churches

Visit the UNESCO World Heritage Site of Old Goa, which has several churches and cathedrals built during the Portuguese colonial period. Don’t miss the famous Basilica of Bom Jesus and the Se Cathedral.
Head to the nearby village of Chandor to see the ancient Palácio do Deão, a colonial-era mansion that is now a cultural center and museum.
End the day with a visit to the Cabo de Rama Fort, which offers panoramic views of the Arabian Sea.
Wildlife Safari and Waterfalls

Head to the Bhagwan Mahavir Wildlife Sanctuary in the morning for a wildlife safari. The sanctuary is home to several species of animals and birds, including tigers, leopards, and giant squirrels.
After the safari, visit the Dudhsagar Waterfalls, which are one of the highest waterfalls in India. You can take a dip in the pool at the bottom of the waterfall or enjoy a picnic lunch.
In the evening, return to your hotel or resort and relax.
Beach Hopping

Spend the day beach hopping along the southern coastline of Goa. Some of the beaches you can visit are Palolem, Agonda, and Galgibaga.
Enjoy water sports such as jet skiing, parasailing, or banana boat rides, or just relax on the beach with a good book.
In the evening, head to one of the beach shacks for some fresh seafood and live music.
Departure

Check-out of your hotel or resort and head to the airport or railway station for your departure.
I hope this itinerary helps you plan your South Goa tour. Have a great trip!