After you've strolled the Royal Mile, clambered up to the castle, and revelled in the Gothic charm and atmosphere of Edinburgh, keep the fun afloat with a boat tour on the estuary! This 3-hour cruise will take you sailing around Firth of Forth and under the gigantic Three Bridges. Venture out to the calm seclusion of Inchcolm Island and hop off for an optional walking tour of the ancient monastic island and its medieval abbey.