Week long tour starting from south London

Got a weeks holiday later this year and want to do a circular camping tour. Did the Kent coast last year and want to try something different this year. I really would prefer not to use a car or public transport if possible because i normally carry my camping gear in a trailer and it's awkward to use the trains with the trailer.
Any suggestions ?
Any routes ?
Any camp sites recommended ?
Any suggestions ?
Any routes ?
Any camp sites recommended ?
0
Posts
(or get on a train back home from Ipswich or Chelmsford)
Even if trains are a pain with a trailer, you are within striking range of a line into London whenever required
Plus, if I remember rightly, One mainline trains (serving Norwich, Diss, Ipswich, Colchester and some other stops) still have proper, roomy guards vans and tend to be cycle friendly.
The Suffolk Coast route is well worth following.