Hi Mayur, There are a lot of places nearby:
1. Varkala beach
2. Kovalam beach where you can go see the Vizhingam Light house too
3. Azhimala Beach
4. Ponmudi
5. Kanyakumari
6. Velli beach
7. Sankhmukham beach (Not really clean)
Depending on your comfort you can plan your visits.