We choose not to publish the full route in advance because if you’re a cancer sufferer you don’t know what’s around the next corner and so neither should we.

However, we’ve listed some of the mountains that may feature in the ride this year to get people excited and/or terrified in equal measure and to help with fundraising. These will include some of the most famous and gruelling climbs of the Tour de France such as Colombière, Galibier, Glandon, Izoard and Madeleine.

New for 2016 shorter is a Tour over 8 days: 7 days cycling, 1 travel/prep day but no rest day. The total distance for the 2016 tour will be approximately 1000km. We ride an average of 140km/85 miles per day, climbing an average of 3500m per day. 

The ride is guided by a professional cycling company who bring a huge amount of expertise as well as ensuring the safe and efficient running of the Fireflies Tour.