Los Gemelos is Spanish for “the twins” and true to the name, Los Gemelos are twin sinkholes, one on either side of the road running from Puerto Ayora to the north side of the island. The mammoth scale of the landmarks often elicits exclamations of wonder from visitors at first sight. The vertical walls of the sinkholes fall deep into the ground covered in a veil of greenery hiding the bottom of the pit. Walk along the craters’ edges before stopping at Rancho El Manzanillo to see giant Santa Cruz tortoises in the wild. On the ranch swap walking shoes for knee-high rubber boots and wade out in to the green fields to come close to majestic giant tortoises and search for the coveted Woodpecker Finch.