Beware, some duff info above.
The retail park where ‘Mc D’s’ is – it’s operated by a private company and has a limit – you’d be mad to leave it there for a few days!
Re. P&Rs there’s one at Newbridge and another at Lansdown but be aware
again they don’t allow overnight parking.
You need to be a bit more specific about which hotel you’re in. There are lots and ‘central’ could cover anything from the Hilton to the Royal Crescent (which has it’s own private garage and concierge
service btw!). Many have ‘residents parking’ permits (see below) that they loan out.
There is absolutely no ‘free’ on street parking anywhere within about a mile of the center. And most is residents parking permit only or max 2 hrs.
More info here:
http://www.bathnes.gov.uk/transportandstreets/Parking/Pages/default.aspx