The great chamber
High-ceilinged at the start.
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Al Hoota Cave is one of Oman's best known show caves, in Al Hamra at the foot of Jebel Shams, the country's highest mountain. It runs for 4.5 km as a series of large underground chambers, and the tour ends at a lake home to blind fish, the source of its fame. The cave is believed to be about two million years old. Its stalagmites yield data on past climate. It shelters more than 100 animal species, including small bats, spiders, snails and water beetles. The fish have lost their sight and colour over time, as eyes serve no purpose in the dark. The guided tour covers 500 m of the cave. It starts in the largest and highest chamber, and the passages then narrow and drop until you reach the lake. The highest part of the cave stands about 65 m above the entrance. A second route is for experienced cavers only, with abseiling and swimming, so it does not suit ordinary visitors. It is 25 km in a straight line from Nizwa and can share a day with Jebel Shams and Misfat Al Abriyeen. Sources give opening hours of 9 am to 5 pm, with a last tour around 4 pm. Book ahead in season, wear non-slip shoes as the paths are damp, and follow the guide's instructions on light and photography.
High-ceilinged at the start.
Home of the blind fish.
Oman's highest mountain above.
Al Hamra, Ad Dakhiliyah Governorate, at the foot of Jebel Shams
The standard tour is short and guided, but the floor is damp, so keep an eye on young children.
It is wise in season, as tours run at set times.