gym traing

hi has anybody out there had trouble training in the gym or even trying to find got work out tips for gym workouts to help with swimming I am currently in traing for 4 ocean swims held at the end of this year and have been training for this for some time only trouble is that my current workout at the gym is currently targeted at muscle growth and not swimming and the trainers that are at my gym do not have a good understanding of training techniqes for ocean swimming. So my question is this? If anybody has hade problems with this and have found some usefull training programs as well has training in the box and in the ocean if they could -please contact me. I am from New Zealand so do not hold that against me its a great place but the water could be a bit warmer(lucky for me somebody invented a wetsuit, i now i'm a wos)