With slightly less than 30,000 inhabitants this is the second largest city in Sumba. Waikabubak is the capital city of West-Sumba regency (Sumba-Barat) and like the 2 other biggest cities of Sumba this location is a great location to execute trips from because it is very close to the Lamboya and Wanokaka district were beautiful things of Sumba can be explored.