Boardwalk and Lava Cactus on Bartolomé Island
Bartolomé Island, in the Galapagos, has a boardwalk from the ocean to its peak, including almost 400 steps. Partway up the boardwalk, I took this picture looking back at the lower section of the trail. That is a lava cactus in the foreground, pretty much the only one we saw on this barren landscape.