MUMBAI to KANYAKUMARI on bikes

trip424

Hi,
Going to be doing a trip down from mumbai to kanyakumari from the 28th of December to the 5th of Jan.
Going to have two bikes and a car.
The tentative itinerary is
bombay- colva beach goa
colva- gokarna
gokarna-udipi
udipi- bekal
bekal- cochi
cochi- alleppy
alleppy- kanyakumari

was wondering if anybody had done this route recently. if they were any interesting places that were a must see on route.
i just read about kundapura- does it fall on nh 17 or is it slightly off?
are the places mentioned good places to stop(ie gokarna,udipi, bekal) intereting away from the maddness and real. Or does anyone have suggestions for places close by that are a little off the beaten track and interesting.
were a group of 4 btw the ages of 25 and 28. just wanting to travel, learn, explore, feel and see whatever we can along the coast.

also if anyone has any suggestions of mote;s, hotels, places you can camp out on route would be great.

thanks