Agreed with above and basically an offshore helideck approach is done (into wind) to a point towards the side of the deck 45° to 90° offset, min 50' above deck height. Once you cannot fly away safely OEI and you can make the deck OEI then you commit to land.
Obviously making sure you are clear of obstructions.
Always into wind.
you can use that as a general approach. you can make it more complex with speeds, heights, go around, who's landing etc..etc..