Dubai's public marine network is no token service. The Roads and Transport Authority runs abras, water buses and a passenger ferry over the same water the tour boats use, and its fares are the honest comparison for anyone who wants the view rather than the day.
A traditional motorised abra across the Creek — Bur Dubai to Deira Old Souq, or Dubai Old Souq to Al Sabkha — is AED 1; the air-conditioned and petrol abras are AED 2. The crossing takes under ten minutes and the stations take cash, nol, debit and credit. A whole abra chartered costs AED 60 for thirty minutes, AED 120 for an hour.
In the Marina, the BM1 water bus loops Marina Promenade, Dubai Marina Mall North, Marina Walk and Marina Terrace for AED 3 a hop, BM3 running on to Bluewaters. On the Water Canal, DC2 charges AED 2 per stop. The ferry is the sightseeing tier: Al Ghubaiba to Dubai Marina is about ninety minutes at AED 50 silver or AED 75 gold, the Water Canal legs AED 25, a family of two adults and two children AED 140.
So two people cross the Creek and return for AED 4, or ride from the old town to the Marina for AED 100. The cheapest shared yacht hour here is $18 a head, the cheapest speedboat run $41. What the AED 100 does not buy is what people book for: open water off Palm Jumeirah, the close angle on the Burj Al Arab, the swim stop, the buffet, the drinks licence.
One ferry condition is easy to miss. RTA states the circular loops from Dubai Marina — 11:30 and 16:30, past Palm Jumeirah and Atlantis — sail only with a minimum of twelve passengers. Out of season that is a real chance of standing on the pontoon holding a valid ticket.