How about Oman?

Someone here with experiences in Oman?

So far I have a raw plan about a roundtrip to Oman for about 10 days.
How can it be optimized?

Day 1 and 2 - Muscat and Wahiba sands

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Day 3 and 4 - Sur

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Day 5 - Masirah Island

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Day 6 and 7 - Salalah

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Day 8 and 9 - Musandam

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Day 10 - Fin~