Start here — pick the next step
Don't browse everything at once. Choose the route that matches where you are now.
New to offshore
Join the community first
Get around people who can answer real questions before you start spending money.
→ Free access
Getting tickets
Use the exam prep hub
Mock exams, quick-fire revision, and prep for 3.1U, 3.2U, 3.4U, and ACFM.
→ Start prep
Planning money
Use the calculators
Work out costs, day rates, gas calculations, dive physics, and practical planning.
→ Open tools
Building skills
Use the training tools
CV builders, ACFM explainers, Nexus modules, competency tools, and field guidance.
→ Start learning
Exam Prep
Mock exams, quick-fire revision, and ticket prep.
4 tools
Exam Prep Hub
All exam preparation resources in one place. Start here if you're getting ready for your tickets.
3.xu Lite / Exam-lite
Quick-fire practice questions and lightweight exam prep for your 3.xu qualifications.
3.1U · 3.2U · 3.4U Mock Exams
Full mock exams for your 3.1U, 3.2U, and 3.4U. Available inside the community.
ACFM Exam Prep
Mock questions for your ACFM Level 1 & 2. Covers technique theory, signal interpretation, and report writing — the bits that catch people out.
Calculators
Dive physics, gas, pay, chamber, leaks, and training cost tools.
10 tools
Calculators Hub
All calculators in one place — dive physics, gas, pay, training cost, and more. Use this as the main launch point.
NDT Training Cost Calculator
Planning your NDT route? See what it is likely to cost before you commit.
Salary Calculator
Work out your offshore earnings based on day rate and rotation.
ODIA Pay Rates
Current ODIA reference pay rates for offshore diving roles.
Buoyancy Calculator
Calculate buoyancy for objects and structures underwater.
Boyle's Law
Pressure and volume relationships for dive planning and exams.
Dalton's Law
Partial pressure calculator for mixed gas diving.
Gas Consumption
Commercial diving gas consumption calculator.
Chamber Pressurisation
Calculate chamber pressurisation rates and gas requirements.
Chamber Gas Addition
Gas addition calculations for chamber operations.
Subsea Leaks Calculator
Calculate subsea leak rates and flow data.
Course Cost Planner
Plan and estimate the total cost of your diving course journey.
Training & Learning
Explainers, modules, frameworks, and offshore guidance.
8 resources
Diver CV Builder
Build a professional offshore diving CV from scratch — structured for the industry, covering certs, experience, and dive hours.
NDT / Ropes / Wind CV Builder
CV builder tailored for NDT inspectors, rope access technicians, and wind industry professionals — the right structure for your certs and experience.
ACFM Explainer
Alternating Current Field Measurement — what it is, how it works, and what inspectors need to know.
Nexus Training Module 1
Nexus inspection training — module one.
Nexus Training Module 2
Nexus inspection training — module two.
Diver Kit List
What you actually need to pack for offshore diving work — clear, practical, and based on real jobs.
Diver Competency
Competency framework and guidance for offshore divers.
Fatalities Database
Commercial diving fatalities — learning from what's gone wrong offshore.
Podcast
Listen free across the main platforms.
Listen free
Spotify
Beyond the Surface — Offshore Careers and Real Talk with Stu Sutcliffe.
Apple Podcasts
Available on Apple Podcasts — subscribe to get every episode.
YouTube
Watch episodes and short-form content on the Beyond the Surface YouTube channel.
Blog
Articles, guides, and real talk about offshore careers — all in writing.