Start your adventure in Kanyakumari with a visit to the Kanyakumari Beach, where you can watch the sunrise and sunset from the same point. Next, head to the Vivekananda Rock Memorial, accessible via a ferry ride and dedicated to Swami Vivekananda. From there, visit the Thiruvalluvar Statue, a 133-feet-tall statue situated on a small island accessible by ferry. End your day at the Padmanabhapuram Palace, a 16th-century wooden palace filled with ancient artifacts and relics.
Begin your day in Varkala with an early morning hike up to Anjengo Fort, built by the Portuguese in the 17th century and offering breathtaking views of the Arabian Sea. Next, head to the Kappil Beach, a secluded beach known for its natural beauty. In the evening, head to the Janardanaswamy Temple, a 2000-year-old temple dedicated to Lord Vishnu. End your day at the Thiruvambadi Beach, a tranquil beach relatively untouched by commercialization, perfect for a relaxing evening stroll.
Spend your final day in Varkala with an adventure-filled day. Start by heading to the Varkala Cliff, home to numerous cafes, restaurants, and shops. From there, go paragliding with Varkala Paragliding or take a surfing lesson with Soul & Surf. In the evening, head to the Papanasam Beach and take a dip in the natural springs believed to have medicinal properties. End your day with a seafood dinner at the Black Beach Restaurant.
If you have more time, consider adding a visit to the Mathoor Hanging Bridge, unmissable for its breathtaking views of the Western Ghats. On the other hand, if you have less time, consider either skipping Kanyakumari or Varkala and spending 3 days exploring only one of those destinations in greater depth.