Tudor is a nice site well situated for your choice of destinations. Pub next door can be a bit busy in peak season but food and service has been good when we have visited.
Don't recall it having a play area though and pitches have EHU only not fully serviced.
Generally there are more sites a little further south of Bristol and have a better range of services.
Dulhorn Farm is close (but not too close to the M5) between Junctions 21 & 22. Nice friendly site, no serviced pitches, play areas, local amenities are a short drive away but not really walkable.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets