| Omni Travel Adventures PADI Master Instructor Boise/Idaho/USA Teach ice diving, cold water, high altitude, DAN oxygen first aid, limited visibility, photography, ocean reef ecology, wreck, independent travel agent, tour guide, all from Boise.
| Patrick Hammer, Wrecks, Caves Rebreathers PADI, TDI, Iantd Alsip, Illinois, USA
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