Baltic Wharf is at the Avon Gorge end of the Bristol Docks.
The water is between 9 and 18 feet deep.
There can (in the summer) be a lot of boats moving up and down.
As can be seen by the photo below it is a pavers / concrete bank.
This veiw is looking towards Bristol City Centre and the S.S. Great Britain.
and the Locks to the river Avon and Bristol Channel.
and a Roach.