Sumba island has a great and unique position respect to the Sunda Banda archipelagoes, it is one of the biggest island on the East Nusa Tenggara region beside Flores and Timor. It represents an isolated sliver of probable continental crust to the south of active volcanic islands (Sumbawa, Flores ) within the forearc basin (Fig.1). It is situated to the north of passage from the Java Trench (subduction front) to the Timor Through (collision front). It does not show still the effects of strong compression in contrast to islands of the outer arc system (Savu, Roti, Timor), while the magmatic units make up a substantial part of the Late Cretaceous to Paleogene stratigraphy.

Sumba island covers an area of 11,150 square km which is now populated by about 350,000 people. Generally the climate similar to other part of Indonesia where a dry season (May to November), and a rainy season (December to April). The island of Sumba is well known of its sandlewood, horses, impressive megalithic tombs, typical hand woven textile ("ikat"), and still untouched beautiful beaches. There are two entering point in to Sumba island from anywhere in the Lesser Waingapu & Waikabubak (Tambolaka). These are the people could enter Sumba for either by flight or boat.

Sumba has a unique culture and their social life. Sumbanese are traditionally divided into three level of social life : (Raja/King) - Maramba,  Customary Official - Kabihu, and Slaves - Ata. Sumbanese are living from farming, cattle breeding, rice-field farming and trading. Ones owns cattle will contribute to their social status such as if they had more cattle giving them a higher social status. 

The Customary houses designed in high-peaked roof to store the heirlooms and store. It is divided into male and female section, and generally surrounded by impressive megalithic tombs. Their famous ceremony are the wedding and funerals. where they usually sacrificed animals pigs, buffaloes, cattle, and horses.

The Megalithic tombs are made from the hard stone forming the megalithic shape. This covered by rectangle flat stone supported by four pillars about 1,5 meters high. The Megalithic tombs are actually located in the front of their houses

A primitive Sumbanese art objects strongly related with a social functions of Merapu belief. The carved stones and wood statues are representing the death, Merapu, and as medium for their contact. Metal ornaments and  jewelry are usually for wedding ceremonies, and are related to the social status.

Site of Interest:

The island of Sumba is well known of its sandlewood, horses, impressive megalithic tombs, typical hand woven textile ("ikat"), and still untouched beautiful beaches. There are two entering point in to Sumba island from anywhere in the Lesser Waingapu & Waikabubak (Tambolaka). These are the people could enter Sumba for either by flight or boat.

Pasola
Pasola is the name of a war game tournament played by two groups of selected Sumbanese men. They riding their decorated selected horses fling wooden spears at each other. (The government allows the ritual game to take place, but the spears much the blunt).  Pasola is a traditional ceremony of the Sumbanese held in the way of uniquely and sympathically traditional norms, every year in February and March and has become the focus of attention of the people since it is a part of the sacred homoge to the Marapu.

Pasola is, above all, the most exciting ritual of Sumba-where else in the world can you see colorful horsemen trying to kill each other? Where else in the world can you see the shedding of blood, the lost of and eye, and occasional death coloring the event and being the part of the game?. The ceremony occurs during February in Lamboya and Kodi and during March in Gaura and Wanukaka. The main activity starts several days after the full-moon and coincide with the yearly arrival to the shore of strange, and multihued sea worms - nyale. The precise date of the event decided by Rato during the wula podu (the month of pasola the fasting month).