The closing date for online entries is 6pm on Friday 11th April
However to be guaranteed a course map on waterproof paper for your chosen course you MUST pre-enter by midnight on Monday 7th April.
We will print some extra waterproof maps for late entries. After the cut-off date, if your preferred course is full (see entry limits below), contact events@esoc.org.uk and we may be able to offer you a non-waterproof version (at the same cost).

Blue 6.4km 120m climb
Longest technical course
Green 5.0km 80m climb
Technical course ie more difficult than Long Orange.
Long Orange 3.7km 50m climb
A longer course than Orange (aka Red), would suit runners, some controls outwith the Castle Grounds.
Orange 2.5km 40m climb
Will involve basic use of the compass and route choice with some controls outwith the Castle Grounds.
Yellow 1.5km 20m climb
Course using simple linear features like paths, walls and streams. Some controls just off the paths. Stays within the Castle Grounds
White 1.3km 20m climb
Very easy course with all controls on paths. Suitable for wheelchairs and buggies. Stays within the Castle Grounds