Clinging on top of brown, beige and black lava rocks on Eden Island are white palo santo trees mixed with tall prickly pear cactus and patches of saltbrush. The shoreline is protected by mangroves. The reddish sinewy roots emerging from the water are red mangrove, the most common type in the Galápagos. They grow best in low tidal areas. You might also see an occasional white mangrove.