Past the dunes of Bouctouche by about 10 minutes, stay along the coast until you see a sign for Cape Lumiere. Head til you see a lobster plant on your right on the water. You will see a dead end sign for the road, you can park on the side of the 4 wheeler trail and it's a short hike over the dune to the beach. It's not far from Richibucto village, just head towards the coast.
It only works with a swell from the East/Northeast and is pretty infrequent. But on the right day, will put Dennis Beach (the other NB spot) to shame. Very clean waves, not choppy at all. Great sandy beach to hang out at with noone around.
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I have yet to see larger than 2 - 3 foot waves but have heard it can get up to 4 - 6 foot on a good day with an off shore storm. Just check buoyweather.com to see when it works and you should be ok.