There is a guy out of Pwhelli, 40 mins north of Barmouth, 01286 882611, Give him a call, I see him out a far bit. You could leave the Family on the local beaches, there are some good ones around there.
Don't forget Aberdovey there are a few boats that work out of there. I took my boat out last weekend, loads of mackeral and bream. I used my Berley bomb, see Rex Hunt fishing on Sky, the bream were almost one every drop. If you didn't get one they had taken the bait. Mackeral strip with a bit of the silver belly on was the bait.