Hamlet's Kronborg castle and ships as mirages

The Kronborg castle "hovering" in the air, seen from Viken on the Swedish side of the Sound.

A definition of Mirage:
 an optical effect that is sometimes seen at sea, in the desert, or over a hot pavement, that may have the appearance of a pool of water or a mirror in which distant objects are seen inverted, and that is caused by the bending or reflection of rays of light by a layer of heated air of varying density

(Merriam-Webster.com)


Yesterday was a great day for mirage watchers in Øresund. Hamlet's Kronborg castle was nicely "floating" in the air, and strangely distorted  ships were passing by. 

A somewhat closer view of Kronborg. On the left you can see the distorted silhouette of one of the Helsingør - Helsingborg ferries.

Another ferry has just passed in front of an approaching trawler. 

The trawler on the left and two of the ferries.

Another ferry and the trawler "floating" in the air.

The trawler (Russian?) approaching Kronborg.

In front of Kronborg castle. A ferry on the left of the castle.

Another Kronborg picture.

Minutes later the trawler continues northwards along the Danish coastline.

The strange looking "blob" in the middle is probably a small naval vessel or a tug, on its way southwards in Øresund. 

PS
If you are interested in learning more about maritime mirages here is an interesting and informative page.