Dubai to Iran by sea?

It's ok

I've traveled reverse (Qeshm-Dubai) last year.

travel by ferry boat from the United Arab Emirates and Dubai to Iran : Passenger Ferry Terminal in Port Rashid. With the ferry company Naif Marine you can go to Bushehr. Contact phone number: 3456695, email address: info@naifmarine.com, email.pirouzan@mail.dci.co.ir. The ferry is a big passenger boat with a cosy open deck. The ferry leaves every two weeks and the trip takes 24 hours.

http://www.hansrossel.com/travel-information/dubai...

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VALFAJRE-8 SHIPPING COMPANY

Valfajre-8 Shipping Company a subsidiary of IRISL, is active in carrying cargo and passenger between countries in the Persian Gulf and Oman Sea. The company's fleet of 13 ships of various capacity has regular services from Bandar Bushehr , Abbas, Bandar Lengeh, Khoramshahr and Abadan to the major ports of the region, such as Kuwait, Qatar, Bahrain, Dubai, Sharjeh and Dammam Saudi Arabia, as well as Iranian free zones of Kish and Qeshm Islands.

http://www.irantravelingcenter.com/valfajr8_persia...

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Shiraz isn't a port. So you'd have to take the land route and travel again for several hours once you arrive at Iran, which is too much hassle.

first Dubai to Bandar-Abbas by ferry(approximately 4 hrs) then Bandar-Abbas to Shiraz by coach(approximately 6 hrs).

Good luck!

im sorry because i dont know.