And,he says the subject of oceans interests him especially because he has been scuba diving since he was a child.

VOA: special.2009.03.25

He created what was required to do that, from the Aqua-Lung, better known by the acronym scuba, to submersibles.

VOA: standard.2010.06.18

Walsh spent eight years in academia. The retired Navy captain continued to pursue his passions as a scuba diver, private pilot and explorer, participating in dozens ocean dives and expeditions to the polar regions.

VOA: standard.2010.06.21

President Mohamed Nasheed and 11 of his government ministers, plus the vice president and Cabinet secretary, donned scuba gear and plunged six meters below the shimmering turquoise surface of an Indian Ocean lagoon.

VOA: standard.2009.10.17