For the past 24 hours we've been passing by icebergs and glaciers.  If you love snowy mountains, bitter cold and the splendor of winter in May, you'd want to be on the Oceania Riviera cruising by the coastline of Alaska. To recap, woke up after sleeping for 13 hours to see these scenes from our veranda. We had never before seen people on the deck below us, but I guess for the Hubbard Glacial watch, the doors to this front portion of the ship was opened.  Went down for an Italian lunch plus beef, with Peroni Beer and a Chianti. Returned to our room for the rest of the glacial show.....for now. A small iceberg. What do you know about  glaciers  and icebergs.  I'll start with the former. A glacier is a persistent body of ice that is constantly moving downhill under its own weight.  A typical speed is around 3 feet per day, although the Greenland Jacobshavn Isbtae moves as fast as 100 feet/day.  Surges can be as fast as 300 feet/day.    Glaciers ...