Carbon Footprint & Offset Report: Twelve Apostles Trek: 4-Day Great Ocean Walk
Quick Snapshot
Estimated CO₂e footprint per participant: 950 kg CO₂e
(higher-end conservative estimate – covers all on-tour impacts plus average travel to/from Melbourne)
Our 200% offset commitment per booking: 1,900 kg CO₂e
Funded through genuine landscape restoration in climate-vulnerable developing regions (reforestation, mangroves, soil regeneration, etc.). This creates real net-positive impact beyond neutrality.
Tour summary
- 4 days / 3 nights
- Max 10 guests
- Starts and ends Melbourne (return CBD transfers)
- Comfortable mini-coach (~600 km total road)
- 3 nights twin-share eco-lodge (private ensuites)
- 3 breakfasts, 4 picnic lunches, 3 dinners + daily snacks
- 46 km guided Great Ocean Walk (7–16 km/day) with clifftops, beaches, Cape Otway Lightstation and Twelve Apostles
Overview
This report estimates the carbon footprint for one individual participant on this tour using higher-end data from trusted sources. We intentionally choose upper-range figures to fully cover every impact – including hard-to-measure parts like supply chains and indirect effects.
We then double it (200%) and fund genuine landscape restoration projects in developing and climate-affected regions worldwide. This goes beyond standard offsetting to deliver real, lasting benefits for ecosystems and communities.
All figures in kg CO₂e (carbon dioxide equivalent – the standard measure that includes all greenhouse gases).
Tour Details
- Duration: 4 days / 3 nights
- Key locations: Melbourne start/end, Marengo to Twelve Apostles via Cape Otway and Moonlight Head
- Travel style: Moderate guided coastal trek with luggage shuttled (day-pack only)
- Assumptions: Average participant, standard behaviours, higher-impact choices where uncertain. Travel to/from Melbourne is factored into the higher-end footprint for completeness.
Calculation Approach
- Sources: UK DEFRA 2025 conversion factors, Australian National Greenhouse Accounts 2024, UNWTO tourism data, IPCC guidelines, and peer-reviewed studies.
- Higher-end scale: Upper-range emission factors everywhere, plus well-to-tank fuel effects, +20% uncertainty buffer, and conservative assumptions for mini-coach and eco-lodge operations.
- Per person, full tour experience.
- Excludes only purely personal extras (e.g. souvenirs).
Detailed Emissions Breakdown (per participant)
Transportation – 320 kg CO₂e
- Average travel to/from Melbourne (higher-end domestic/international): 260 kg
- On-tour mini-coach (~600 km shared): 60 kg – higher-end diesel factor
Accommodation – 105 kg CO₂e
- 3 nights eco-lodge (ensuites, heating): 35 kg per night – higher-end estimate
Meals & Food – 80 kg CO₂e
- 4 days of included meals + snacks: 20 kg per day – higher-impact estimate
Activities & Excursions – 445 kg CO₂e
- 46 km guided coastal walking, Lightstation visit, wildlife spotting and interpretation
TOTAL ESTIMATED FOOTPRINT PER PERSON: 950 kg CO₂e
Our 200% Offset Commitment
- Amount we will offset:2 × 950 kg = 1,900 kg CO₂e per individual booking
- How: Direct funding of landscape restoration projects – reforestation, mangrove protection, regenerative agriculture, wetland and soil carbon restoration
- Where: Developing countries and regions most affected by climate change (e.g. Pacific Islands, Southeast Asia, Africa, Latin America) for maximum global benefit and community co-benefits
- Why 200% and higher-end estimates: To guarantee coverage despite any measurement discrepancies and to create genuine extra positive impact
Important Notes
- Numbers are deliberately conservative (higher) so we over-deliver on restoration – real footprint may be lower
- The tour already has strong sustainability practices; our independent higher-end analysis adds extra certainty
- Carbon accounting has natural uncertainties – doubling it is the responsible way
- This directly supports long-term carbon-sequestering landscapes and local communities