In reply to ringo:
You won't have any problems wild camping (usual rules apply, be discreet, pitch late leave early leave no trace) in the south plenty of pubs/cafe's stay open in Saundersfoot and Tenby, but after that things might be more limited round to Pembroke. Lydstep tavern normally shuts for a couple of months, cafe in manorbier is shut until march, pub in manorbier only does food at weekends in winter, cafe at stackpole quay normally closes. Stackpole inn and st govan's inn normally open but check in advance if you are relying on them. No shops between manorbier village and angle. (25? Miles)
Post edited at 22:45