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Madagascar Travel Advice


Please read each of the sections below carefully. They provide important information about your Operation Wallacea expedition in Madagascar. Should you require further assistance please do not hesitate to contact your nearest Operation Wallacea office.

Travelling to and from the expedition


The terrestrial only and the combined terrestrial & marine expeditions start in Mariarano on a Sunday at 1600hrs. You need to book your international flight to arrive into Antananarivo Airport (TNR) anytime on the Friday.


The terrestrial only expeditions finish in Mariarano on a Friday at 09:00hrs. You need to book your homeward international flight to depart from Antananarivo Airport (TNR) after 03:00hrs on the Sunday. This is because your check-in time must be on Sunday, not Saturday night. 

The combined terrestrial & marine expeditions finish in Nosy Be on Friday at 16:00hrs. You need to book your homeward international flight to depart either from Nosy Be (NOS) anytime on the Saturday, or from Antananarivo Airport (TNR) after 03:00hrs on the Sunday*.
*If you are on the combined terrestrial & marine expedition and find a flight after 20:00hrs on the Saturday evening, please email flights@opwall.com to see whether this would be a possible option. This will depend on your expedition dates. This option is not possible for those on the terrestrial only expedition.

Internal Travel

When you arrive at Antananarivo Airport you will be met by an Opwall representative and transferred to a hotel where you will overnight. The next day (Saturday) you will travel overland to Mahajanga where you will overnight again. On the Sunday, you will travel to the expedition start point in Mariarano. If you are on a forest only expedition, on the Friday after your expedition ends you will start your transfer back to Antananarivo Airport ready for your homeward flight on Sunday.

Travel to the marine site from the forest includes travel overland to Mahajanga on the Saturday. Then you will get an internal flight from Mahajanga down to Nosy Be.

From the marine site, if you are not flying directly out of Nosy Be on the Saturday, you will take an internal flight from Nosy be to Antananarivo on the Saturday ready for your homeward flight on the Sunday.

Please note internal travel is an additional cost to the Operation Wallacea expedition fee and your international flights, once your international flights have been arranged and uploaded to your portal we will be able to help organise your internal travel package based on exactly what you need. To find out more please check out the costs to consider tab on your expedition page on the website.

Additional Nights

As part of the internal travel package it is possible to arrange additional nights in Antananarivo/Nosy Be before and after your expedition, and the relevant airport transfers. The cost of these extra nights will be added to your internal travel package quote.

Booking International Flights

Please ensure when booking your international flights that the cost of your ticket includes hold luggage.

Research Assistants and Dissertation/Thesis Students

You are welcome to book your flights with your preferred travel agent, just ensure to check our flight arrival and departure information thoroughly. A great place to start looking for flights is Sky scanner, Expedia or Trip UK. If you are a volunteer from the UK or Ireland when you book an expedition with us you can contact our preferred travel partner ISON Travel, who will provide you with competitive quotes for your international flights.

ISON Travel
Tel: +44(0)203 657 9738
E-mail: opwall@isontravel.com


If you are a student in the USA or Canada, we recommend trying Student Universe for your flights as they give discounts to students. You are welcome to book your flights elsewhere, however our partnership means that they generally provide the best price, are familiar with our expeditions and give excellent service.

Student Universe US
Tel: +1 800 272 9676 (Toll-free within the US and Canada)

Student Universe CAN
Tel: +1 800 761 0060 (Toll-free within the US and Canada)

Once you have booked your international flights, please enter the details on the Opwall portal.

School Groups


School groups that have chosen a fully inclusive expedition package do not need to book international flights or internal travel. Operation Wallacea will be in contact with the group leader directly and will provide you with a fully inclusive quote for your international flights, internal travel and expedition costs.


Schools also have the option of having Opwall search for the best flight deal for the group and once the school group leader has approved the purchase, the tickets are then bought by Opwall at cost on behalf of the school.  A flight booking fee per person is charged for this approach.  Details of the flights for the group will be entered onto the portal by the Opwall staff booking the flights.

Alternatively, if the school has reliable travel partners then they can book the flights themselves and just pay Opwall for the expedition and internal travel costs. Under this scenario the group leader needs to enter the flight details through the Opwall portal and email a copy of the itinerary or E-ticket to flights@opwall.com.


Please be aware that your passport must have at least 6 months validity (period before expiry) at the time of your arrival into Madagascar. Failure to have at least 6 months validity on your passport will ensure denial of entry into Madagascar.


All passport holders can be issued a visa on arrival into Madagascar for up to 60 days. Further information can be found in the link below.



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