Couples should carry the following items on a honeymoon in Kerala:
Kochi is especially full of mosquitoes and so you must be safe and carry mosquito repellents with you. Most of the hotels do provide mosquito repellents but it is always good to be cautious.
Tourists should pack according to the places they are visiting in Kerala. For instance, if you are visiting Munnar and Kochi, it is better to pack sweaters and cotton clothes.
There is always a possibility of a sudden downpour in Kerala so it is advisable to carry an umbrella at all times.
Sunscreen, hats, caps
Carry these items to avoid getting sunburnt as the sun can be pretty strong in Kerala.