If you want to head to a Wadi for a day trip from Muscat, I highly recommend the beautiful Wadi Al Arbeieen. It is located about 1.5 hours southeast of Muscat and is well signposted for Omani conditions. From the capital take the NA17 southbound and then follow the signs for “Wadi Al Arbeieen”. The last 15 kilometers are unpaved. An all-wheel-drive vehicle makes the ride significantly faster and easier, but is not absolutely necessary. 

If you drive far into the wadi you end up in a small village. The inhabitants are very friendly. You can park your car and walk into the wadi. Due to its relative seclusion, it is mostly quiet and the beautiful nature invites you to picnic.