Harmonie Mutuelle Cassis Open Swim
Open Water Swimming covering 500 m to 10 km in Cassis (Provence-Alpes-Côte d'Azur, France)
Harmonie Mutuelle Cassis Open Swim is an endurance sporting event in Cassis, Provence-Alpes-Côte d’Azur, FR focused on Open Water Swimming. It is part of Open Swim Stars. Key features include Lakes & Ponds, Nature & Off-Road, Seaside & Coast, Relay.
The race program comprises 6 competitions, including Swimming 10 km (10 km, +20 m D+), Swimming 5 km (5 km, +10 m D+), Swimming 3.5 km (3.5 km, +7 m D+), 4 x 500 Relay (2 km, +5 m D+), Swimming 1 km (1 km, +2 m D+), and Swimming 500 m (500 m, +2 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (open-swim.com).

Event characteristics
Races & distances (6)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Swimming 10 km | Open Water Swimming | 10 km | +20 m | 177 m - 185 m | Loop course | Route & profile |
| Swimming 5 km | Open Water Swimming | 5 km | +10 m | 180 m - 184 m | Loop course | Route & profile |
| Swimming 3.5 km | Open Water Swimming | 3.5 km | +7 m | 183 m - 187 m | Loop course | Route & profile |
| 4 x 500 Relay | Open Water Swimming | 2 km | +5 m | 186 m - 190 m | Loop course | Route & profile |
| Swimming 1 km | Open Water Swimming | 1 km | +2 m | 189 m - 191 m | Loop course | Route & profile |
| Swimming 500 m | Open Water Swimming | 500 m | +2 m | 177 m - 179 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 177 m to 185 m above sea level (+20 m D+, -20 m D-)
Elevation profile & course telemetry
Altitude from 180 m to 184 m above sea level (+10 m D+, -10 m D-)
Elevation profile & course telemetry
Altitude from 183 m to 187 m above sea level (+7 m D+, -7 m D-)
Elevation profile & course telemetry
Altitude from 186 m to 190 m above sea level (+5 m D+, -5 m D-)
Elevation profile & course telemetry
Altitude from 189 m to 191 m above sea level (+2 m D+, -2 m D-)
Elevation profile & course telemetry
Altitude from 177 m to 179 m above sea level (+2 m D+, -2 m D-)
Frequently asked questions (FAQ)
When and where does Harmonie Mutuelle Cassis Open Swim take place?
Harmonie Mutuelle Cassis Open Swim takes place in Cassis, Provence-Alpes-Côte d’Azur, FR (start area at coordinates 43.2157° N, 5.5385° E). The exact date for the next edition is currently open and will be announced by the organizer.
What races and distances are offered at Harmonie Mutuelle Cassis Open Swim?
The race program comprises 6 competitions, including Swimming 10 km (10 km, +20 m D+), Swimming 5 km (5 km, +10 m D+), Swimming 3.5 km (3.5 km, +7 m D+), 4 x 500 Relay (2 km, +5 m D+), Swimming 1 km (1 km, +2 m D+), and Swimming 500 m (500 m, +2 m D+). The competitions belong to Open Water Swimming.
What is the course layout and elevation profile for Harmonie Mutuelle Cassis Open Swim?
The main competition (Swimming 10 km over 10 km) is designed as a loop course featuring +20 m of elevation gain and -20 m of elevation loss, ranging between 177 m and 185 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.
Where can I find registration and official race rules for Harmonie Mutuelle Cassis Open Swim?
Official race regulations, course details, and registration information are provided on the organizer's website (open-swim.com).