Pembroke Dock ?????????

[Welsh man of the valleys]

Hi All, Can someone help me in finding out whats the fishing like in Pembroke Dock, in a small boat.
Sorry for being a bit vauge, my brother's just got a 16ft, and he fancies going out in it this weekend.
Were both safety councious so no probs there but his sounders not the best, so it will be hit and miss finding any underwater objects to hold the fish.. Are there any marks that can be found without using sat nav?? Thanks K