Needed your valuable inputs for the below trip planned from Jan 24th to Jan 29th.

Jan 24
5AM leave bangalore
7AM dharmapuri (breakfast)- heard there is an A2B after this.
12noon madurai bypass (lunch) - heard there is a hotel (fantasy) here.
wanted suggestions on a decent lunch place around.
1 PM leave towards rameshwaram
4 PM reach rameshwaram
can we do dhanushkodi in the evening itself?
till what time do the 4 wheel drives do their trips?
how much time do we need to visit dhanushkodi and come back to the check post.
come back, check in to a decent hotel and relax.

Jan 25
5AM - rameshwaram temple.
9AM - breakfast
10AM - leave to kanyakumari
ECR to Kanyakumari
Ramanathapuram-Tiruchendur-Kanyakumari (~300 km)
3PM - reach kanyakumari for sunset
vivekananda memorial
halt in Kanyakumari

Jan 26
6 AM - sunrise and leave to poovar (~70 km).
needed inputs if visit to poovar island is worth it if we are not staying there.
picked this from thegreatindianroadtrip, places worth mentioning.
9 AM - leave to kovalam after breakfast (~20 km).
relax at the beach.
finish lunch.
3 PM - leave to varkala (~60km).
find accomodation, halt. need some suggestions here for a reasonable place to stay on the cliff.

Jan 27
10 AM - leave to allepey (~120km)
booking a house boat here.
stay on the boat till next morning.

Jan 28
8 AM - leave to parambikulam sanctuary (~240km).
have not booked yet.
stay in jungle lodges.

Jan 29
8 AM - leave to bangalore via ooty (~440 km).

4 bikes
1 Thunderbird (MH reg)
1 Electra 4S (TN reg)
1 Electra 5S (KA reg)
1 Pulsar (KA reg)

One of them is a TN vehicle.
so is there a risk when entering kerala?
open to change the itinerary based of suggestions and experiences - especially
on Jan 28th.