No, No! Just hit a normal gym and do a lot of reps with short intervals. Yes, its gonna hurt but its only good as long as you have the right technique and give your body time to recover. With legs this will first make you feel your gonna die but after a month or two your legs are gonna adjust and you will find heavy weather sailing a pleasant recovery exercise...

This is a good example of a hard training session:

watch?v=tAEmggoDKtQ