Sounds like a great service.tellboys tackle in amlwch cracking shop if you want bait and the shop is closed phone the number on the shop door someone will be with you in 10 mins to open shop up good choice of fresh and frozen bait
more than likley most of the black lug you buy in the local tackle shops come from llanddona beach.Want to dig lug yourself, Wern Y Wilan near to Beaumaris/Llandonna, Park in the laybay to your left as the road ends, walk through the gap to your right, blow lug can be dug after 100 yards or so, black are about a mile walk out towards the water. Sub 1 meter tide take a wheelbarrow and 10lb of salt and you can fill it with 10 inch razor, 2 milish walk to the beds though.
Or the Fforyd, Caernarfon, park in the picnic area and walk down the shingle onto the beach, 50 yards and start digging, they are a hybrid worm here. Black/ cross/ blow, magic for local bass.