About 30 mins away from Salalah there is a nice camping spot with few lookouts. Here is the location. It is possible to go all the way down and explore the wadi further.
Nested between magnificent mountains this is a perfect location to enjoy a great sunny day or an overnight stay.
About 3 hours away from the capital of Oman, Muscat, there is a beautiful stretch of sand that borders the Arabian Sea called Wahiba Sands.
The trip to Fazayah beach was one of the Khareef highlights. Must visit.