Sustainable transport charity Sustrans have teamed up with Chilean winery Vina Cono Sur to celebrate 15 years of the National Cycle Network and to promote the joys of cycling in our beautiful countryside.  
 
To be in with a chance of winning a case of refreshing sparkling wine to toast the long summer days, just answer this question:
 
How many miles does the National Cycle Network cover?
 
A 2,500 miles
B 6,500 miles
C 12,000 miles