They all approached the golden-silver shiny platter to abroad the new ship on a foggy, windy and snowy day. Platter, something you serve food on, doesn't make sense in the context. Abroad is an adverb and cannot be used as a verb; I think you mean board instead. Can you describe what kind of ship it is, how is it knew? As the reader, I would like a visual, at the moment it could be any sort of ship and if the characters are going to be spending any length of time on it, a description should be clear in mind, even if it is not a physical description. Can a day really be foggy, windy and snow? Also, is there a way you could possibly show us this instead of telling us?
Rory, Emily, Louis and Liz were all old high school friends ready to take off and relax after a daunting and stressful HSC year. The old sea captain approached the platform, guiding all his passengers with safety rules and guidelines; flattering, enticing and marveling the passengers. He was the strangest looking old midget ever found; with a beard so long it passed his tiptoes, with a nose as long as the good ol’ Emily Post, and with the shortest hair growing possible. Why are those the characters names? They don't need to have meaning but within short stories, names can be a perfect way to convey a deeper metaphoric meaning within the characters' portrayal. How can they be 'old high school friends' when they have just finished school? If the characters are new to the ship, how do they know he is the old sea captain or is it describing his age? The use of passengers twice in the same sentence, even with a semicolon separating them, seems tacky. The description you give of the sea captain doesn't do anything but place him in a box, instead of making him a character. Use toes, not tiptoes; sounds better. "Shortest hair growing possible" sounds contradictory to the long beard; is his hair short is some places and not others, and why is this important?
“Jump on” yelled the Sea Captain; with the wind blowing angrily in his face. “I can’t wait to show you the land beyond the sea!” Liz smelt an sense of wickedness in his voice.'Sea Captain' here is capitalised but in the previous paragraph it wasn't. Also, you said earlier that they were going on a relaxing cruise, but 'land beyond the sea' sounds like the boat is going to an island, not a cruise. Liz smelt a sense of wickedness.