This morning stop at Champion Islet and Devil's Crown where you can enjoy a hike from the black mangrove beds to a brackish lagoon, which usually holds one of the largest flamingo populations in the Galapagos. This island features some endemic plants such as Scalesia villosa, white and black mangrove, and holy stick. The trail continues to a beautiful white sandy beach, one of the most important nesting sites of green Pacific sea turtles. It is important to avoid walking in the water due to the sting rays that may be hiding in the sand, which can be dangerous if accidentally stepped on. From the beach, one can spot sea turtles, blue-footed boobies plunging into the water, and small reef sharks floating along the shoreline in the search for food. This coral-sand beach marks the end of your trail, and you must head back to the olivine beach you landed on, to swim or snorkel amongst sea turtles, reef fish, sea lions and, on a good day, white-tipped reef sharks.
In the afternoon land on the north side of Floreana, and walk to the bay of Post Office, named like this because, in 1793, Captain James Colnett installed a wooden barrel which served as an informal post office for sailors passing through who would take letters with them to their destinations. Place unstamped postcards inside the barrel that should reach their destinations for free. It can take weeks, months, even years, not arrive at all, or even arrive before you! Encounter Darwin finches, yellow warbler, and lava lizards. Snorkel with green pacific sea turtles and on the main beach among playful sea lions.