Know Before You Go:
Will your kids sit still for three hours? For something a little more kid-friendly take the shorter, more up-beat, Ride the Ducks tour instead.
The Extras:
The tour focuses on an overview of Seattle as a whole instead of the core downtown areas. Skip this tour if your stay is brief and you want to see a lot of downtown sites. Otherwise, it's a wonderful way to discover all of Seattle without getting lost.