Hey suha, From wayand to allepy its 300 km. You can club both places but side by side your duration for trip increase by a day. Plan accordingly. Happy traveling
It will be a bit strenuous as the distance is too large.
Lot of time spent travelling.
you can check out thekkady and kumarokom which are also very beautiful!
If you are okay with almost 10 hours drive then why not. I would suggest stop by Guruvayur or Coimbatore to break the journey and enjoy more than just tiring yourself up.