I'm from New Brunswick but never fished when I lived there. The last 3 summers I've gone down in July for 2 weeks. Me and my brothers went out for flounder last year but only caught sculpin, but I think I had on a flounder 'cuz it had weight to it but when I got it up close to where I could see what it was it spit the hook. But I was using a medium-heavy Ugly Stik and that wasn't bad but you might want to use a bit stronger rod so you can really set the hook. I had on 12 lb test and was using a spinning reel. That's all you need. Now my brother says August is better for flounder so you might have good luck. We were bottom fishing with clams. I believe the best time is when the tide is coming in. That brings in the flounder. If you fish around salmon cages, make sure you're allowed to. Some places don't like boats in around them. And for mackeral, pretty much any thing will do. I've never fished for them offshore tho, just when the tide was coming in. But Leo and Ron from Fish TV were in P.E.I. jigging off a boat. Pretty fun. What part are you going too? Take pics to share with us later. And have fun. I did.