Welcome to Greenmapper!

Connect to your favorite nature online


What is Greenmapper?

Greenmapper.org is a new way to be connected to your favorite natural places. Local, regional, national and worldwide. Mark these places on the map. Discover new nature, based on our large database. Support your favorite areas by registering yourself as a fan on Greenmapper. Now you can be reached – anonymously – in case your help is needed.


Mark your favorite nature.



Discover new places.



Support areas when needed.



Share nature related places you love

Do you have specific places with green nature or water that you highly appreciate? Day-to-day nature in a park near your home? A mind-blowing nature spot you’ve only visited once? Please share your places at Greenmapper! Why? Let us explain.

Wise decisions

In our rapidly developing and globalising world many developments – unbeknownst to us – impact on natural areas and green space. Roads and houses are built, agriculture and mining activities claim ever more land, park managers have to make strategic choices on what and what not to preserve, and so on. To make wise decisions in regard to nature, it is essential to have sound and detailed knowledge on how many people appreciate which green and natural areas, and for what reasons. But where to find such knowledge? Furthermore, usually at some point, while development decisions are being taken, it is logical to involve the people who love the natural areas being affected. Since they can then express their opinions, they can give support of some kind or they can co-create. But how to realise this involvement? How can fans of the same area connect to each other? And how can land-owners, policy makers, nature managers, and project developers reach the fans?

The double mission

We at the University of Groningen in the Netherlands have a double mission with Greenmapper. First, we want to strengthen both science and policy with better data on the appreciation of nature. Different from what one may assume, there is insufficient publicly-available data of the sound and detailed kind that is needed. Second, we want to make it easy and normal for fans of areas to be reachable. Our aim is to have 1 million respondents from different countries marking nature places: at local, regional, national, and global levels. 1 million people being reachable as a fan of their areas. Help us in our mission and join in! We will do the science. And together with our partners we’ll pave the way towards obtaining accurate data on nature appreciation. We’re committed to using new insights gained from respondents to improve the governance of nature areas. Please note: If you join in, you can enjoy the database of attractive places: you can explore the map and also ask for personal tips for places to visit. And last but not least, Greenmapper is anonymous. 

Register at Greenmapper

Fast registration

✓ 1 minute

✓ Mark 1 attractive place in nature

✓ Mobile, tablet, laptop or desktop

> Register!

Full registration

✓ 10 minutes

✓ Mark 4 attractive places in nature

✓ Laptop or desktop

> Register!


Click on a flag to go to the country-specific Greenmapper survey.

Contact us to help us develop the survey in your country and language.




Frans Sijtsma

Frans Sijtsma

Peter van Kampen

Peter van Kampen

Michiel Daams

Michiel Daams

Nora Mehnen

Nora Mehnen

Nora Mehnen

Rixt Bijker



F.J. Sijtsma, F.J., Van der Bilt,W.G., Van Hinsberg,A., De Knegt,B., Van der Heide,C.M.,Leneman, H.  Verburg R. (in press) – Planning nature in urbanized countries. An analysis of monetary and non-monetary impacts of conservation policy scenarios in the Netherlands. Heliyon (peer-reviewed open access journal)

Bijker R.A. and Sijtsma F.J. (2017). A portfolio of natural places: Using a participatory GIS tool to compare the appreciation and use of green spaces inside and outside urban areas by urban residents. Landscape and Urban Planning 158 (2017) pp. 155-165. DOI: 0.1016/j.landurbplan.2016.10.004

Davis, N., Daams, M., Sijtsma, F., & van Hinsberg, A. (2016). How deep is your love – of nature? A psychological and spatial analysis of the depth of feelings towards Dutch nature areas. Applied Geography, 77, 38-48. DOI: 10.1016/j.apgeog.2016.09.012

Daams, M. N., Sijtsma, F. J., & van der Vlist, A. J. (2016). The Effect of Natural Space on Nearby Property Prices: Accounting for Perceived Attractiveness. Land Economics, 92(3), 389-410. DOI: 10.3368/le.92.3.389

R.A. Bijker, N.Mehnen, F.J. Sijtsma and M.N. Daams (2014), Managing urban wellbeing in rural areas: The potential role of online communities to improve the Financing and governance of highly valued nature areas. Land, 3(2), pp437-459.(In special issue: ’A New Urbanization Land Change Continuum’)

De Vries, S.,  A. Buijs, F. Langers, H. Farjon, A. van Hinsberg, F.J. Sijtsma (2013). Measuring the attractiveness of Dutch landscapes: identifying national hotspots using Google Maps. Applied Geography. Volume 45, December 2013, Pages 220-229. (5-year Impact Factor 3.4)

Pellenbarg, P.H., F.J. Sijtsma and P.J.M. van Steen (2013). Perceived place attractivity based on green water and nature values. TESG, 104 (2), pp. 255-257. (5-year Impact Factor 0.8)


Sijtsma, F.J., H. Farjon, S. van Tol, A. van Hinsberg, P. van Kampen and Arjen Buijs (2013). Evaluation of landscape changes – Enriching the economist’s toolbox with the Hotspotindex. In: W. Heijman, & C. M. J. v. d. Heide (Eds.), The Economic Value of Landscapes. Chapter 8, pp 136-164. London: Routledge.

Sijtsma, F., Broersma, L., Daams, M., Mehnen, N., Oostra, M., & Sietses, A. (2014). A socio-economic analysis of the international Wadden area: Analysis carried out through the Wadden Sea Long-Term Ecosystem Research (WaLTER) and University of Groningen. (345 ed.) Groningen: Urban and Regional Studies Institute / University of Groningen.

Sijtsma, F., & Daams, M. (2014). How near are urban inhabitants to appreciated natural areas? An exploration of Hotspotmonitor based well-being indicators. Results for the Netherlands, Germany, and Denmark.: Report at the request of the OECD; supporting the How’s life in your region? study. (348 ed.) Groningen: Urban and Regional Studies Institute / University of Groningen.

Potenties van de Hotspotmonitor om de graadmeter Landschap te verfijnen – F. Langers, A.E. Buijs, S. de Vries, J.M.J. Farjon, A. van Hinsberg, P. van Kampen, S. van Tol en Frans J. Sijtsma (2013). WOt Werkdocument 321. Alterra – Wageningen.

Sijtsma, F.J. en M.N. Daams, 2013.Wie waardeert welke natuurgebieden waarom? Over wat natuurbeheer kan leren van de markteconomie. De Levende Natuur, 114(2), pp.46-50.

F.J. Sijtsma (m.m.v. M.N. Daams en J.C. Hoekstra) Waardering en financiering van de Nederlandse natuur – Argumenten voor grootschalige innovatie in private financiering van natuur, onder blijvende eindverantwoordelijkheid van het Rijk. Voorbereidende voor het advies ‘Onbeperkt Houdbaar: Naar een Robuust natuurbeleid‘ van de Raad voor de Leefomgeving en Infrastructuur (RLI).

F.J. Sijtsma, M.N. Daams, H. Farjon and A.E. Buijs, (2012). Deep feelings around a shallow coast. A spatial analysis of tourism jobs and the attractivity of nature in the Dutch Waddenarea. Ocean and Coastal Management, 68 (2012), November, pp138-148. (DOI:http://dx.doi.org/10.1016/j.ocecoaman.2012.05.018)

Explore Greenmapper data

We surveyed over 15.000 people in The Netherlands, Germany, Denmark, Switzerland,
Italy, Brazil and South-Korea. We share our data through an open access platform, to support academic research and policy making.

Explore data

To request our data for use in your scientific study or policy analysis, please contact us.

Greenmapper Daily app

Using our extensive database, we allow you to discover an attractive place in nature every day on your smarpthone.




Questions/remarks? Feel free to contact us!

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