Large icebergs sit deep in the water and often move with the tide.   They often move upwind being eroded at the waterline by wind waves. Eventually they roll and become more rounded, before breaking up.  The magnificent Harpa in Reykjavik is a large angular iceberg eroded at its waterline.

P1000933pse860

 

P1000938pse860

 

 

 

P1000942pse860

Harpa

IMGP0702pse860

Nuummiut, Narsap Ikerasaa (Narsaq Sound)

P1000947pse860

P1000955pse860

Reykjavik seafront (Harpa to the right)