英文關鍵字
alaska
united
states
archival
prince
william
sound
columbia
glacier
historical
vintage
1999
america
coastline
blue
cruise
cold
freezing
glacial
frozen
iceberg
landscape
mountains
ocean
purity
scenic
water
valdez
travel
shoreline
white
mt
einstein
shoup
bay
state
marine
park
icefield
chugach
gulf