NEW : The 163 people aboard the Cetacea found themselves stuck after a line got tangled in the vessel 's propeller Monday afternoon , the Coast Guard said in a statement . The stranded boat safely docks at the Long Wharf in Nahant . The boat was 21 kilometers east of Massachusetts , Boston . It got stuck after a line tangled in its propeller .
NEW : The stranded boat safely docks at the Long Wharf in Nahant . The boat was 21 kilometers east of Massachusetts , Boston . It got stuck after a line tangled in its propeller .