Today we explored two sites on Isabela Island. In the morning, we visited Urbina Bay, where endemic plants, finches and Alcedo Volcano giant tortoises can be found. Later on we had a lecture about the human history of the Galapagos. In the afternoon, we sailed north towards Tagus Cove where we kayaked and snorkeled. To end the day we took an energetic walk to the summit of a tuff cone where we appreciated the vastness of Isabela Island.