Friday, February 21, 2020

Island of Bartolome

Our first destination for the day trip was the Isand of Bartolome. It is a geology lesson encapsulated in one Island. There are three or four different types of lava to see, submerged craters, craters above the water, 30 square mile fresh lava flow, and most importantly a boardwalk up to the top of the cinder cone. As we arrived there was a sea lion on the stairs who did not want to get out of our way. Louis first yelled at the sea lion. Yelling did not do much
, as always. So he waved his hat and swatted his whiskers. Apparently sea lions don't want anybody touching their whiskers so he finally got out of her way and allowed us to get onto the island. We walked along the broadwalk and saw the Ahi type of lava lava mud and pahoehoe lava. Louis explain the origins and Creations of each type of lava and then showed us examples of it. About midway up there was a very alien landscape that Leslie said looked like the Moon. Louis laughed and said that Buzz Aldrin had actually visited that area and told them this was the place that looked closest to what the moon looked like! We were able to lift lava stones that had large amounts of trapped gases in them versus lava stones that had no gas and we're very heavy in comparison. We hiked to the top for glorious views of the island of Bartolome as well as James Island. The most distinctive part of the view was the Pinnacle rock. It was part of a cinder cone that was more dense than the rest of the cone and was left standing. Its distinctive shape however was changed by World War II Pilots that did practice runs with torpedoes on the Pinnacle. The torpedoes were not filled with explosives but they were filled with sand and had a lot of momentum which slowly chipped away at the shape of the rock. The government has since cleared out all of the old torpedo tubes but the shape of the rock is still quite distinctive to this day.

Pikaia 1 bow


James Island in the distance and Pinnacle Rock to the right


Pinnacle rock is quite tall over a hundred feet


It looks a bit like a turtle with a raised head



Sea lion on the stairs


He is not moving out of the way


 is the Sally Lightfoot crab


A submerged Caldera


A lava lizard endemic to this island only


Different layers of lava mud or tuff


The pioneer species of cactus. The first generation grows and then Falls and disintegrates after dropping at seeds. The disintegrated Cactus access soil for the next generation


Lava tubes and different flow areas


A collapsed lava tube


A lava lizard climbing a bit of bush to try and get a better view of the surroundings


Another Pioneer plant that is currently dormant with the exception of a lava lizard


Luis is not superman, the rock is actually very light


A moon like landscape


Lava rock curls


An expanse of lava mud


Almost to the top


Looking over at James Island you can see fresh lava flow that is brown compared to the other coloration of the surrounding rocks


Looking further south you can see the black lava that is lower down which is part of the 30 square mile lava flow


The last set of 100,000 stairs to the top


Yes we made it to the top


 our boat looks so small way down there


The lighthouse is very distinctively Orange


The submerged Caldera as viewed from the top