Dhow trips can be booked through this highly recommended agency. The owner is proud of being local and employs knowledgeable Omani captains who speak a variety of languages. An overnight camping trip on a beach in one of the khors (rocky inlets) costs OR55 per person (for a minimum of two people) and includes all equipment, dinner and breakfast.
If you have a specific interest (such as birdwatching), the guides will be happy to tailor a trip for you. The agency office is next to Diwan Alamir Hotel.