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UK Knepp Travel Advice

Knepp Estate & United Kingdom

Please read each of the sections below carefully. They provide important information about your Operation Wallacea field course at Knepp. Should you require further assistance please do not hesitate to contact your nearest Operation Wallacea office, or email the team at knepp@opwall.com.

Travelling to and from the expedition

Students over 16 years of age can travel independently.


The field courses start in the Knepp Estate, West Sussex on a Sunday at 1700hrs. If you are getting dropped off at Knepp directly, please email knepp@opwall.com for directions. If you are arriving by train then you need to book your inbound train to arrive at Horsham station on Sunday between 5-6pm.


The field courses finish at Knepp Estate, West Sussex on a Saturday at 0900hrs. If you are departing by train then you need to book your outbound train to leave Horsham station on Saturday between 9-10am.

Internal Travel

If you are catching the train, please email knepp@opwall.com with the times of your inbound and outbound trains so that we can make sure we are there to meet you upon arrival and ensure you get your taxi safely. We will be able to organise a taxi to collect you and to take you back to Horsham.


For all COVID-19 information please visit this page.

Carbon Offsetting

By joining an Operation Wallacea expedition you are contributing directly towards the study and protection of threatened biodiversity, bringing significant financial benefits to small local communities, and working towards protecting valuable carbon stocks from deforestation. We are extremely proud of the impact we and our volunteers have had over the past two decades, creating a significant benefit to the environment.

However, we want to do more. Specifically, we want to make Operation Wallacea completely carbon neutral. As an organisation we will now be offsetting our own emissions from staff travel (both road and air) and from running our offices. But we also want to encourage all our participants to offset, at the very least, the carbon emissions from their own international flights – and ideally more. To do this we will be supporting the Wallacea Reforestation Initiative in partnership with our sister charity the Wallacea Trust (UK Charity 1078362), and you can read more about this exciting project here that takes a new approach to tropical reforestation that benefits not only climate, but biodiversity and livelihoods too.

How to Calculate Your Donation Amount

The first step in calculating your donation amount is to work out the total estimated amount of carbon your flights will emit into the atmosphere. To do this you need to take the exact flight routes you are booked on to for your summer expedition, and run these through the UN’s International Civil Aviation Organization (ICAO) carbon calculator. This calculator can be found here.

This gives you the Total passengers’ CO2/journey (KG), which you will then need to convert into tonnes. 1 KG is equal to 0.001 ton, so you then need to divide your figure in KG by 1000. We usually assigned a value of $12 USD (or £10 GBP) per ton of carbon, therefore to work out this donation amount, you would need to multiply your ton value by either 12 or 10 depending on your currency.

For some of your flight legs, you may not be able to find your destination airport on the calculator, in this circumstance, we would recommend using the nearest airport (ie. for Croatia using Zagreb airport).

If you’re happy with an estimate rather than calculating the costs yourself, a £15 donation will cover the carbon produced by the flights in more than 95% of cases.

To donate, please visit the Wallacea Trust page and click ‘donate now’ at the top.

Wallace House, Old Bolingbroke, Spilsby, Lincolnshire PE23 4EX, UK
| +44 (0) 1790 763194 | info@opwall.com