In modern history, the Tanimbar islands (as the Aru Islands) were mentioned in the 16th century maps of Lázaro Luís (1563), Bartolomeu Velho (c. 1560), Sebastião Lopes (1565), in the 1594 map of the East Indies entitled Insulce Molucoe by the Dutch cartographer Petrus Plancius, and in the map of Nova Guinea of 1600 (based on Portuguese sources). The Tanimbar Islands were sighted and possibly visited by Portuguese navigators such as Martim Afonso de Melo Jusarte around 1522–1525, who traveled around the archipelagos of Aru (with the reference "Here wintered Martin Afonso de Melo") and Tanimbar, and possibly Gomes de Sequeira in 1526.
The Tanimbar Islands were part of the Dutch East Indies. During World War II the Dutch sent a detachment of 13 soldiers led by KNIL sergeant Julius Tahija to the town of Saumlaki in the Tanimbar Islands in July 1942. Japanese ships entered the bay at Saumlaki on 30 July and small boats were used to get to the jetty. The Japanese filed in ranks on the jetty and wanted to march in close order into Saumlaki. The garrison opened fire at close range with their two light machine guns. The Japanese retreated to their boats leaving several dead on the jetty. Subsequent enemy landings, however, were made elsewhere while the Japanese ships opened fire on the defenders’ position. Six of the Dutch soldiers were killed and the survivors were driven into the bush. On 31 July, a vessel carrying an Australian Army contingent arrived at the jetty at Saumlaki, unaware that the town had fallen to the Japanese. The vessel was fired on from the shore, and the commander of the landing party was killed. The Australians retreated to Darwin. Afterwards, the members of the Dutch garrison came under naval gunfire from the Japanese; this inflicted some casualties, and was followed by attacks by Japanese infantry on a wider front. Seven surviving members of the garrison then boarded a sailing ship and escaped to Australia.

Currents are consistent on a number of dives while some others are really quiet. Some dives on reefs or pinnacles have to be done on the current exposed side in order to enjoy the best fish life and can, therefore, be slightly “sporty”. Our dive guides always check the current before the dive and will inform you of the conditions. A reef hook is recommended.

The weather is rather variable; even during the "dry" season in this region, rain can fall anytime. Temperatures is around 30 °C. Generally calm sea with a few temporary storms; slight swell in the most northern part. There is no clear separation between dry and wet seasons.