Ok Dave say what you like and I'll have a think, scenary, pub type ect
Well Martin.....i like to stay on the coast...where im staying next week is a field away from the beach....i enjoy taking my dog for coastal/beach walks where she can go swimming in the sea....i like visiting/walking to fishing villages....i like watching boats/trawlers.
Pubs.....as long as they serve good food and my dog is welcome i dont mind.....shes a black lab that usually doesnt cause a prob in pubs and just goes to sleep under the table.
Tho last year.....the owner of a pub told me to let her off her lead so she could play with another dog in the bar.....so i did....she then made an immediate beeline for the kitchen out the back!
Labs and food 
I had to go and retrieve her 
Hmm boats rules out Minehead to Ilfracombe except for pleasure craft and biguns to and from Avonmouth - scenic though, some small villages and a few pubs.
I'd suggest Lizard to Helford, great coastal views, quite a few pubs, lots of ships on the English Channel from Lizzard Point, round a bit and you get stuff in and out of Falmouth - a large natural harbour.
Welsh coast sounds good - where we went there is a good walking area along the edge and you can see Dolphins, bit quite though - everything is spread out.
I'll keep thinking but west side is my speciality, however you will need to drive a bit unless 5 mile walks are your speciality