was there last weekend stayed 2 days on the beach ,bait ,spinining ,float you name it catch nothing even no bite.
2 mark over there from very right under the metal barrier sand rocky mix
other left side the public toilet(if you look at the sea),if you have offroad car will be handy or else just 5 minutes walk to mark.
as I said I catched nothing however place looks promising ,specialy highy tide second place looks amazing for bass but did not fish there because I was camping with my son at the first beach which is you have to follow the best maintened road in Ireland

however I will return the cullenstown no problem ,oh before I forget second mark I was talking about has small lagun I guess if you go to fishing that side I highly recommend do some spinning overthere,
carefull high tide both mark when tide comes ,tide really comes over the rock so safety first.
ps;if you google map search cullenstown pretty clear vision even before you go there.
good luck.