| Outdoor projects (Long-Distance-Hikes): | |
| 1992 - 2023 | Various LAW's in the Netherlands (over 3500 km in total) Includes: Pieterpad, Drenthepad, Stellingenpad |
| Various | Tatra 5x (Poland) / Lake District (England) / Giant Mountains (Czech Republic) |
| 1994 | GR5 (Maastricht to Nice) |
| 1998 | Coast-to-Coast (England, West to East) |
| 2001, 2003, 2005, 2006 | GR10 (Pyrenees, Atlantic Ocean to Mediterranean Sea) |
| 2008 | GR20 (Corsica, North to South) |
| 2009 | West Highland Way (Scotland) |
| 2009 | Great Glen Way (Scotland) |
| 2009 | Tour du Mont Blanc (France, Italy, Switzerland) |
| 2010, 2012, 2014, 2015 | Haute Route Pyrenees (Pyrenees, Atlantic Ocean to Mediterranean Sea) |
| 2011 | Ahornweg (Germany) |
| 2011 | Everest Trek (Nepal) |
| 2015 | Annapurna Circuit (including Tilicho lake) (Nepal) |
| 2016 | Walkers Haute Route (Alps, Chamonix to Zermatt) |
| 2017 | Alta Badia High Route (Italy, Dolomites) |
| 2017 | Tour Matterhorn and Tour Monte Rosa (Combined) (Alps) |
| 2017 | Alpe Adria Trail (Austria, Slovenia, Italy) (Großglockner to Adriatic Sea) |
| 2018 | Choquequirao Trek (extended retour via Salkantay) (Peru) |
| Ausangate Circuit (extended with Rainbow Mountains) (Peru) | |
| 2018 | Jiri-Lukla and Lukla-Phaplu Trek (Nepal) |
| Three Passes Everest Trek (Nepal) Including: Ama Dablam, Island Peak and Everest basecamps, Chukung Ri, Gokyo Fith lake | |
| 2019 | Corfu Trail (Greece) |
| 2019 | John Muir Trail (California, USA) |
| 2020 | Stubaier Hohenweg (Austria) |
| Alta Badia High Route (Italy, Dolomites) | |
| 2021 | Via Alpina (Green: Eiger, Monch, Jungfrau; Red: Rhone valley, Aletsch glacier) (Switzerland) |
| 2021 | Eifelsteig (Germany) |
| 2022 | Pennine Way (England) |
| 2022 | Baltic Forest Trail (Lithuania, Latvia, Estonia) |
| 2023 | GR131 (Lanzarote & Fuerteventura) (Canary Islands, Spain) |
| 2023 | Epirus Trail (Greece) |
| 2023 | Te Araroa North (New Zealand (North Island)) |
| 2024 | E4 Crete (Greece) |
| 2024 | Kungsleden (Sweden) |