I Propose you 3days Tour to Explore the high land and the Center of Madagascar. This is the time to let you enjoy the different landscapes, hills, volcanoes lacks. Have a look at the well-known reserve park of "Lemurs Park" see the 9 species of lemurs and endemic plants, visit the Royal Palace of King & Queen.
The itinerary can be like this :
Antananarivo -Lemur Park - Ampefy -Kings Palace- City Tour in the Center -Transfert you to the Airport.