Summer beneath the surface at Dimaniyat Islands

While Salalah takes the spotlight as Oman’s iconic summer escape, Muscat offers a different kind of sanctuary. Beyond the green hills, mist-covered mountains and rain-washed plains of Dhofar lies another refreshing retreat: the underwater world of the Dimaniyat Islands Nature Reserve, where coral reefs, sea turtles and crystal-clear waters offer a glimpse into Oman’s rich marine life.
Located around 18 kilometres off the coast between Barka and Al Seeb, the reserve comprises nine islands. The islands provide important nesting grounds for endangered hawksbill and green turtles, while resident and migratory seabirds, including white-cheeked and bridled terns, return each year to breed. Together, these habitats make the Dimaniyat Islands one of Oman’s most important marine reserves.

The journey begins at Al Seeb Port, where the scent of saltwater and freshly caught fish mingles with the calls of seagulls and the hum of boats preparing to depart. Visitors gather as guides make final preparations and deliver a brief safety briefing, reminding the group of the responsibility that comes with entering a protected natural environment.
As the boat heads into the open waters of the Sea of Oman, Muscat’s skyline gradually fades into the distance, replaced by an endless stretch of blue. After around 30 to 40 minutes, the outline of the nine islands appears on the horizon, signalling the arrival at the nature reserve.
At the designated snorkelling site, the anchor is lowered and preparations begin. Visitors secure their flippers, adjust their masks and make their final checks. Guides remind them not to touch the coral or disturb marine life. Access to parts of the islands is also restricted from May to October to protect nesting seabirds.

With the briefing complete, visitors enter the water one by one. Beneath the surface, the character of Dimaniyat Islands changes completely.
The clear, cool water reveals coral reefs stretching across the seabed, with schools of colourful fish weaving between them. Yet for many visitors, the most memorable encounters are with the reserve’s sea turtles, which can often be spotted moving calmly through the water.
Regular diving enthusiast Saif al Zawawi, who has explored several diving sites across Oman and the region, said the Dimaniyat Islands stands out for the cleanliness of its waters, the beauty of its coral reefs and the diversity of its marine life.

“This was not my first visit, yet every time I return, I am struck by its beauty. The stunning clarity of the water and the elegance of the coral never fail to impress”, he said.
For experienced divers and first-time visitors alike, the underwater landscape offers more than an opportunity to observe marine life. It provides a reminder of the importance of protecting one of Oman’s most remarkable natural environments.
As the boat makes its way back to Al Seeb Port, the islands gradually disappear into the horizon. For first-time visitor Omar al Busaidi, however, the experience remains.
“Freediving in Dimaniyat Islands in Muscat Governorate is an enjoyable experience that allows visitors to discover the beauty of our beloved Oman’s marine environment”, he said.
While Salalah remains Oman’s quintessential summer destination, Dimaniyat Islands offers an escape of a different kind, one found beneath the surface of the sea.