After driving up from Puerto Villamil to the trail head, we will prepare our backpacks for the hike into a young forest ecosystem, a world of recent geological history. Our destination is the rim of Sierra Negra Crater, an active volcano which last erupted in June 2018. Upon arrival, we take in breathtaking views and explore the circumference of the massive, lava-filled crater, a caldera that is over six miles across at its widest point. If we feel energetic enough, we can continue our hike to Volcan Chico, a secondary crater that has a wild landscape of puffing fumaroles and colorful lava formations; great examples of the dramatic geological events that have formed the Galapagos Islands over millennia. Hiking time: 4 hours both ways Hiking distance: 6 miles (9.6 km) (10 miles -16 km- optional to Volcan Chico) Hiking elevation gain: 950 feet (289.5 meters) Maximum elevation while hiking: 3687 feet (1124 meters)

In the morning, we move from Isabela to Santa Cruz Island to visit the Charles Darwin Research Station. Once we arrive, we will check in at the hotel. We will then visit the Charles Darwin Research Station to learn more about many of the endemic species seen in the wild, as well as the ongoing conservation and management efforts on the Galapagos Islands.