you can use the main public slip situated just past force four chandlery and through the lifting gate, intercom access first... day licence inc insurance is £12 and as long as the lock gates are open at netham locks (ask the bristol harbourmaster for this info) then you should be ok to get to keynsham at least.,good luck!!
Hi, was just wondering how you got on yesterday in the docks, I have used the docks a few times to cruise around and also to head to the sea through the Cumberland Basin lock but I have never been brave enough to venture up the canal although it has been something that I have considered a few times.