Hi Phil
I'm from Bude but have only been fishing the beaches for less than a year. I'm out at least 4 times a week at the moment trying to get an idea of where to be and when.
Trial and error and all that.
I've been travelling as far as Newquay to the south and Croyde to the north just learning.
I can't help you with specifics but all the beaches from widdie heading North would be good on a low at dusk. Best thing is to get out there and explore

I'm having a hoot!
I know in the summer that low tide turns up sand eels near camel (right hand side of widdie near the rocks) as I've had them wiggling through my toes as I'm entering the water to surf.
It would seem a good place to start. Be warned though... this area has been netted recently for Bass and the net sits just in the gulley and is unseen on the surface.
I can PM you with areas I catch to point you in the right direction or if you wanna meet up anytime just drop me a PM also.
Good luck mate and have fun.