Posting on the basis of my experience.
Although there are many tourism places in India but Kanyakumari is one of best because Climate remain here very good except raining time and even after being so much famous, its just a small city. You do not need to hire a cab etc. for looking beeches. Few good spots identified by me in Kanyakumari.
1. Sea Pear- Constructed after Tsunami, BEST spot for seeing sunrise. Even when crowd remain on the time of sunrise but still it has capacity to manage many peoples so you
very inportant for all travellers
very detailed and impressive (y)
suchindram temple and nagraj temple at Nagercoil are also nearby if one is interested in ancient architectures ( nearly 15 km in tvc line)