SEA SCREAMER, Clearwater Municipal Marina Slip #15, 25 Causeway Boulevard, Clearwater Beach, FL 33767 map & directions Group Rates & Reservations: Call 727-447-7200, Fax 727-449-9201. Email or Call for your THRILL RIDE Today! Notice: Schedule and routes vary depending on weather conditions and other considerations beyond our control. All Sea Screamer cruises and special promotions are subject to availability and changes. Restrictions apply.