Rialto Beach, Olympic National Park

Colorado is just about as land-locked as a state gets. So our trip to Washington was the first time our kids got to see the ocean or a beach.  The idea of high tide and low tide was totally new to us.  We found out the tides are more extreme at full and new moon, and we were there in between.  Still, for people totally unfamiliar the the ocean and tides at all, it was a whole new world.  We spent most of our time at Olympic on the beach, I would love to go back and hike more in the interior.