|Hutton's Deck & lounge seen from the pier.|
Mälardrottningen ("The Queen of Lake Mälaren") was built in 1924 and was, at the time, the world's largest diesel driven yacht. Her most famous owner was Woolworth heiress Barbara Hutton (known as the "Poor, Little Rich Girl") who received the yacht as a gift on her 18th birthday. Since 1982 it has been permanently moored at the island of Riddarholmen.
Riddarholmen island is just adjacent to Gamla Stan and it is either a 15-20 minute walk from the Rival Hotel. Otherwise you can take the subway to the Gamla Stan station and then just exit the station to your right as you go through the turnstiles. Be aware that they are currently doing some construction on Riddarholmen (building a train tunnel under the city) so it looks like you have to walk through a building site to get to the boat... but it is not a problem!