Start the right conversation.

Gareth works with a small number of organisations and individuals at a time. If you are looking for a training tick-box, this is not the right fit. If you are looking for a genuine shift in how your team or organisation understands and manages risk — read on.

Recreation & Technical

Recreational & Technical Diving

From open water to cave and rebreather, the gaps in your training are rarely technical. Your agency taught you what to do. We cover what happens when a team stops communicating, when a plan loses its flexibility, when no one says what they're thinking. That's where dives go wrong — and that's what we teach.

Commercial & Occupational

Commercial & Occupational Diving

Commercial diving operates inside management systems, risk registers, and permit-to-work frameworks. Those systems are necessary. They are also not sufficient. The human side — team dynamics, supervisor decisions, stop-work authority, normalisation of deviance/risk — is where your serious incidents will come from. We bridge the gap between your documented procedures and how work actually gets done.

Defence & Special Operations

Military Diving

Military diving teams operate at the intersection of technical complexity, operational pressure, and hierarchical culture. Power distance, mission focus, and the reluctance to report near-misses are systemic challenges, not individual weaknesses. Our programmes — drawn from military aviation and adapted for defence diving — address them directly, in the language of people who have served.

What is your enquiry about?

What to expect
  • Your enquiry is read personally, not by an assistant.

  • Gareth takes a small number of engagements per quarter, so early conversation is worthwhile.

  • All enquiries are treated confidentially.

What to expect
  • Your enquiry is read personally, not by an assistant.

  • Gareth takes a small number of engagements per quarter, so early conversation is worthwhile.

  • All enquiries are treated confidentially.

What to expect
  • Your enquiry is read personally, not by an assistant.

  • Gareth takes a small number of engagements per quarter, so early conversation is worthwhile.

  • All enquiries are treated confidentially.

What to expect
  • Your enquiry is read personally, not by an assistant.

  • Gareth takes a small number of engagements per quarter, so early conversation is worthwhile.

  • All enquiries are treated confidentially.

© 2026 Gareth Lock. All rights reserved.