For BKO, MV and SN Champs make sure you choose the correct course.
Brown
(long and hard)
Blue incl SN Men and BKO, MV Club Champs
(quite long and hard)
Green incl SN Women and BKO, MV Club Champs
(not so long but still hard)
Short Green
(relatively short but still a hard navigational challenge)
Very Short Green
(the shortest hard navigational challenge)
Light Green
(less of a navigational challenge; suitable for 'improvers')
Orange incl SN Juniors Club Champs
(easier navigation, moderate distance, suitable for older beginners)
Yellow
(suitable for most beginners with map awareness)
White
(suitable for beginners)