Дайв-сайты: Dhofar Governorate

The Hallaniyat Islands are accessible only by boat from Salalah or Hasik on the Dhofar coast of southern Oman. The crossing takes approximately 8 to 12 hours depending on departure point and sea conditions. Dedicated liveaboard expeditions are the only practical way to dive the islands, as there is no tourist infrastructure on the islands themselves. A small fishing community exists on Al Hallaniyah, the largest island, but there are no dive facilities. Liveaboard trips are organised by a very small number of Oman-based operators, typically as multi-day expeditions combining the islands with other Dhofar coast sites.

The Arabian Sea humpback whales are a genetically distinct and non-migratory population of humpback whales that remain in the waters off Oman year-round rather than making the long migrations typical of their species. This population is estimated at fewer than 100 individuals and is considered critically endangered. The waters around the Hallaniyat Islands are part of their habitat, and sightings are possible particularly between October and March. In-water encounters are not guaranteed and are subject to strict regulations to protect this vulnerable population.

The southwest monsoon, known locally as the khareef, affects the Dhofar coast from June through September, bringing fog, drizzle, and rough seas that make the crossing to the Hallaniyat Islands impossible. The diving season runs from October through May, with the best conditions typically in November through March when seas have calmed but the upwelling-driven nutrient enrichment continues to attract marine life. October can be transitional with residual swell, and April to May sees warming waters but declining nutrient levels. All trips are weather-dependent, and operators may cancel or redirect based on conditions.