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As we approached Floreana Island, 25 miles south of Santa Cruz, the dreary, pewter skies cracked and dissolved into a rich blue mantle above the volcanic peaks. The long, gentle slopes were dappled in gray shadows, black tuffs, and a wash of buff-yellow landscape that stretched to a jagged perimeter of frothy, crashing waves. We stopped short of our dive site to have a look at a couple of waved albatrosses that had just alighted on the water. With a wingspan in excess of nine feet, they are endemic to the Galapagos, and they mate for life. They took wing as we moved closer, with a walking-on-water lift-off, like a couple of small seaplanes. The nearby white beach was splattered with sea lions, noisily chattering in aspirating barks, while blue-footed boobies nested above.

Our dive was outstanding. At 50 feet, we watched from below as hundreds of barracudas passed in an arc, silver slivers shim­mering in the blue middle space and the dancing radiance of the surface. We inadvertently aroused a white tip shark from its hidden grotto, and our close proximity flushed a couple of camouflaged rays out of the sand. Sea turtles approached until they saw us and then broke away in the opposite direction. Back in the boat, we stopped near the shore next to a lava wall with several boulders and tiered, fractured structures at its base, populated with sea lions. Perched on the rocks were several Galapagos penguins—looking very Chaplinesque as they stood in their black and white suits and then hopped and waddled down to the water. Not a bad day in the park viewing a rich tableau of abundance and diversity.