Hallaniyat Islands

Salalah · Dhofar Governorate · Oman

The Hallaniyat Islands are among the most remote and least-dived archipelagos accessible from the Arabian Peninsula, a chain of five islands approximately 40 kilometres off Oman's Dhofar coast. Reaching them requires an overnight crossing from Salalah on a liveaboard, and the number of divers who explore their reefs in any year can be counted in the low dozens. This extreme remoteness has preserved a marine environment of exceptional health. The Arabian Sea here is defined by the Somali Current and seasonal upwelling that creates one of the most productive marine zones in the Indian Ocean. Cold, nutrient-rich water rises from the deep during and after the monsoon season, fuelling plankton blooms that attract everything from whale sharks to humpback whales. I dived from a liveaboard anchored in a sheltered bay on the eastern side of Al Hallaniyah. The underwater topography was volcanic, with boulders and walls dropping to sandy plateaus at 25 to 30 metres. The sheer density of fish life struck me first. Schools of fusiliers and snappers moved in numbers I associate with pristine Pacific sites. Giant trevally hunted in packs along the reef edge, and Napoleon wrasses cruised with imperious calm. The coral coverage on protected sides of the islands is excellent, with extensive soft coral gardens in pink, orange, and white covering the walls. Hard coral formations are diverse and healthy, showing none of the bleaching visible on more trafficked Arabian reefs. Hawksbill and green turtles are resident, and lobsters of considerable size occupy crevices. The megafauna potential elevates the Hallaniyat Islands from excellent to extraordinary. Whale sharks transit these waters, attracted by upwelling-driven productivity. The resident Arabian Sea humpback whale population, numbering fewer than 100 genetically distinct individuals, uses these waters as habitat. Encountering one of the rarest whale populations on earth while diving pristine reefs exists in very few places worldwide. The Hallaniyat Islands are not a dive holiday in any conventional sense. They are an expedition, requiring commitment and flexibility. What they offer in return is diving on reefs that function as nature intended, without the fingerprints of human exploitation.