Visa is available on arrival if you are staying in Oman for less than 14 days for certain countries which includes the Unites States. You will need to show:

1. Return flight
2. Hotel Accommodation (if you are staying in the dorms, we will provide that information)
3. Travel Insurance (This should cost less than $100)
4. Children under 18 must be accompanied by their parents

For more information please check here or call the Oman embassy in your country.