Our first full day of exploration took place at the mouth of the Columbia River.  We visited the replica of Lewis and Clark’s Fort Clatsop and then the Columbia River Maritime Museum in Astoria, OR.  In the afternoon, we crossed the Astoria-Megler Bridge to Washington to visit the Lewis and Clark Interpretive Center and Waikiki Beach.  As we returned to the ship, we were greeted by our namesake, a California Sea Lion, swimming in the river next to the National Geographic Sea Lion.