The Omani Aquarium at Bandar Al Rowdha sits alongside a working marina on the eastern edge of Muscat and focuses on the marine life of the Arabian Sea and the Gulf of Oman. The tanks display species from the surrounding waters — reef fish, turtles, rays, and some of the stranger deep-water species found off the Omani coast — with explanatory panels covering the ecology of Omani fisheries and the threats to marine habitats. Compared to the world's major aquariums it is modest in scale, but the content is specific and genuinely informative about the local sea.
The centre has a research function alongside the public displays, which keeps the overall tone more educational than entertainment-focused. It's a good stop for families and for anyone interested in the marine environment, particularly in combination with a boat trip from the adjacent marina. The marina itself is worth a look — it's a working facility where traditional wooden fishing boats, dive boats, and whale-watching vessels share the docks alongside the occasional yacht on a longer passage through the Arabian Sea.