Rajan, as you travelling with your parents, I will flood the information with temples and some other good places. You can select the places which you want to see.
The below places from Rameshwaram to Pondy.
(As per me GOD is one, we have different path to reach him) Group A
1. Velankanni - The Basilica of Our Lady of Good Health church (Velankanni Church & Beach)
2. Sikkal, Nagapatinam - Sikkal Singaravelan Temple.
3. Nagore - Nagore Dargah (Nagore Andavar Temple as Hindu's Call it) Group B
1. Thirunallar, Karaikal - Saniswaran temple
2. Karaikal – Karaikkal Ammaiyar Temple
3. Tharangampadi – Danish Fort & Musem
4. Poompughar – Very ancient Tamil city
5. Gangaikonda Cholapuram - Very important place ( I don’t have words to describe) Gropu C
1. Navagraha Temples. Suryanaar Temple | Way To Temple Group D
1. Sirkazhi - Sattainathar temple 2. Vaitheeswarn Koil, Sirkazhi – Vaitheeswaran Temple, known for palm leaf astrology called Naadi astrology in Tamil
3. Chidambaram – Natraj Temple, Pichavaram Mangrove Forest. Group E
1. Cuddalore – Silver Beach
2. Pondicherry – I think, you know about Pondy.
Pls google the above places and go thru the links which I have given already. All these places are a holy places & tourist attraction place. So you will get good Veg food in good hotels. Need not to worry about too much because quality will be good.
I thought of informing a Non-Veg hotel to have your lunch. Now I have skipped it. My recommendation is take more days if you require and try to cover the entire list. Definitely you and your parents will enjoy it.
If you want more information, you can write here. You can also PM me & call me.