Astrid and Eric are from Holland and are currently bicycling around the world. Here's a blog from Canada this summer that mentions them along with some more info on how they are doing it
This photo is of Astrid and Eric today on the hill just north of Mill Valley. They are staying in Sausalito tonight and tomorrow in SF where they should be riding out this upcoming storm and continuing south after that on highway 1 down the coast to LA. So watch out for them cause they are nice people
Their website is at http://weerkommen.webklik.nl/page/english and they're biking to support animal rights, which is a good cause, so good luck to Astrid and Eric