Here are our top picks for where to spot these mammals of the sea in their summer hang-outs. http://on.natgeo.com/2t3wzk9

Here are our top picks for where to spot these mammals of the sea in their summer hang-outs. http://on.natgeo.com/2t3wzk9 

https://twitter.com/NatGeoTravel/status/886495637784715269