The Longest Day – Lacs de l’Eau d’Heure: Open for Cadets, Fun, Elites, Teams
The Longest Day – Double 10 Finale
Europe’s toughest SUP endurance challenge returns.
After the spectacular opening round at the 10 Hours of Vassivière, the battle for the Double 10 Trophy reaches its climax at The Longest Day.
Morgan Bénard and Catherine Salinoc currently lead the standings, but nothing has been decided. Can they defend their advantage over more than 56 demanding kilometres, or will new challengers rewrite the history of the Double 10?
Ten starts. Ten laps. One winner.
Whether you’re chasing victory, testing your limits or simply looking for one of Europe’s most unique ultra-distance races, The Longest Day is an experience you’ll never forget.
Pre-registration online until 18:00 on the 20th of August 2026. Registrations can also be done on site for a small supplement of € 5,-.
Registration fee includes the evening meal offered during the closing activities.
| Name of the competition: | The Longest Day – Lacs de l’Eau d’Heure |
| Location: | Froidchapelle (Belgium) |
| Address: | Route De La Plate Taille 99, 6440 Froidchapelle |
| Phone (incl land code): | +32 (0)497 515 070 |
| E-Mail: | vincent.claeskens@telenet.be |
| Race (series) & NOR: | BST |
| Open for: | Elites, Cadets ( U16), Fun, Teams |
| Type: | Ultra Long Distance (ULD) |
| Distance: | 1 round = +- 5,6km | 1 start per hour |
| Tagged: | BelgianSUPTour |
| Date: | 22 August 2026 |
| Registration hour: | 21/08 @ 16:00-20:00 | 22/08 @ 7:00-8:00 |
| Skippersmeeting: | 8:00 |
| First start: | 9:00 |
| Organiser: | BST |
| Registration: | The Longest Day 2026 |