Daniel B.
Yelp
The San Francisco Bay Ferry - Oakland Ferry Terminal is OK. It gets the job done.
Oakland Ferry Terminal is located at the corner of Clay and Water Streets in Downtown Oakland. It's right next to the Port of Oakland's main office and is part of Jack London Square, the Port's waterfront district with shops, restaurants, bars, and more.
A trail runs along the water here and there's a sizable lawn (Ferry Lawn). However, other than that, there's not much here. There are benches along the water and other seating nearby, both covered and uncovered (mostly uncovered). Despite the lack of amenities in the immediate vicinity, the area did look like it had been refreshed relatively recently, so that's nice.
The terminal was clean and appeared to be properly maintained. My nieces and another kid were doing cartwheels on the lawn while we waited.
I used the public restroom, entrance facing Water Street, in the Ferry Landing building at 10 Clay Street. It was decently clean for a public restroom in Downtown Oakland. The Ferry Landing building looked like it might have shops and restaurants for the terminal. If it did, they were all closed the day of our visit (a national holiday). I know the building is home to Rosenblum Cellars.
We parked in the pay garage one block north of the terminal. The entrance we used was on Clay Street near 2nd Street. You can't miss it. The garage had plenty of open spaces and is conveniently located close to the terminal. The aforementioned corner at Clay and Water is also a great pick-up and drop-off point.
When it comes to mass transit in the Bay Area, the San Francisco Bay Ferry and its terminals are nicer and feel safer and more comfortable than BART and its stations.
For more information on the San Francisco Bay Ferry itself including its routes, how to get tickets, and our experience from the Oakland Ferry Terminal to downtown San Francisco, read my review for the San Francisco Bay Ferry here: https://www.yelp.com/biz/san-francisco-bay-ferry-san-francisco-4.