Opening Day Flounder By Marty Friedrich by VHFC | May 31, 2018 | Member Reports | 0 comments My two friends and I had a good first day of flounder fishing out in Great Bay. We caught our limit of 9 flounder and had about a dozen throwbacks. There were two nice fish at 22 and 1/2 and one of them weighed 4 & 1/2 lbs.