As you may know, very travel agent provides different kinds of packages, I am just providing some details of one kind of package which is for 14 days. This should give you a good idea of what a 14 day Kerala honeymoon package includes.
Day 1 - This day will be spent sightseeing at Kochi with some shopping experience.
Day 2 - Kochi to Munnar. Day 2 will be spent at the popular hill station Munnar. In Munnar, you will go sightseeing and also be able to see the cultural programmes.
Day 3 - Day 3 is another day spent at Munnar sightseeing, going to the parks, museum, elephant ride and bath etc.
Day 4 - Munnar to Vagamon. Day 4 will be spent at the hill station Vagamon, where you can do paragliding, sightseeing and see the lake.
Day 5 - Vagamon to Thekkady. Day 5 spent at Thekkady where a spice tour is given. Jungle safari, trekking bamboo rafting is optional.
Day 6 - Day 6 again is spent at Thekkady where you will visit the Thekkady Periyar Wild Sanctuary & Ecotourism.
Day 7 - Thekkady to Kanyakumari. Day 7 is spent at Kanyakumari sightseeing, visiting temples an seeing the sunset which is famous.
Day 8 and 9 - Kanyakumari to Kovalam. Day 8 is spent in Kovalam where you spend your own time at the beach where you can do water sports or get an ayurvedic massage.
Day 10 - Kovalam to Trivandrum. Day 10 spent in Trivandrum sightseeing and visiting the zoo and famous temple and also do some shopping.
Day 11 - Day 11 spent in Alleppey, popular backwater destination in Kerala, where you would stay in a house boat.
Day 12 - Alleppey to Kumarakom. Day 12 is spent in Kumarakom which is one of the popular backwaters. You would be able to explore the backwaters here.
Day 13 - Day spent at Guruvayur and Athirapally, sightseeing at both places. This is the best monsoon destination to be visiting in Kerala.
Day 14 - Day 14 would be visiting Alleppy beach, some shopping at the local malls and then heading back to Kochi.