Stages 1-3 are designed to be quite challenging, and you can chose to do them in any order you wish. Visit or use any appropriate means to determine the coordinates. Once that is complete, compare your collected data and the final stage should become quite clear.
Three pictures are provided for each stage, each one zoomed in closer than the last. Use the links before the logs to get crystal clear resolution.
Stage 1:
Should you chose to visit stage 1, you might want to bring along some mountain climbing gear, and be prepared for some temperature extremes.
Stage 2:
Should you chose to visit stage 2, you may require the use of a submarine or other deep sea diving apparatus.
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Stage 3:
Once again, bring your aquatic exploration gear.
Stage 4:
You are on your own....
Designers Notes: If you use google earth, there is a often unnoticed option under a location's properties known as "altitude: clamped to sea floor". You may find it helps accuracy over a "floating flag".
You can use the links below for close-up images.