I fished Seatown a couple of weeks ago and it was pants! It is very rocky all the way left of the carpark and i only caught 2 dogfish and 2 under size pout. If you decide to fish there be prepared to lose gear or fish very heavy. Advice go to Charmouth cleaner ground. good luck.
the right side towards lyme is best for the bass.
the ray fishing is said to be best to the left under the cliffs but on big tides the water will come up to the cliffs so check with local tackle shops on that.