These mountains reach 3,000 meters above sea level. Spread amongst the desert and semi-desert, they form a rocky green island on the sandy sea. It is amazing to ride these mountains. Short one-day trips to the deep canyons are amazing. I don't know if you can go there on a trek of several days, if so it would be great to come there. Absolutely Hajjar Mountains must see.

The best way to experience the Hajjar mountain is to start from Nizwa. There are two prominent mountains which can be explored. Both have different flavour. There is Jabal Akhdar (Green Mountain). There are some nice hotels on Jabal Akhdar. Once can follow some of the mountain trails. There are farms of Rose, Pomegranate etc. However, dont be confused by the name. Mostly the mountains are barren with no trees on them. Besides, it is famous for Diana point, the point made famous by Princess Diana who stopped there on her visit to Oman. The other one is Jabal Shams (Sun Mountain - called so becuase it is the highest point in Oman at more than 3000 metres). The highest peak is under the Army so not accessible. One can go upto the second highest peak which is is also close to 3000 metres. There are a few hotels. However, there is hardly any farming on Jabal Shams. Personally, i liked the drive to the top of Jabal Shams more as compared to Jabal Akhdar. The temperature on both is much lower than the plains. I visited in March 2019 and the temperature in Nizwa was 28 degree celcius. Just after one hour of drive up Jabal Shams, the temperature dropeed to very pleasant 14 degrees.