Greater London Orienteering Summer Series 2025

By | Tuesday, 10 June 2025

Orienteering is a challenging outdoor adventure sport that exercises both the mind and the
body. GLOSS is a series of races run by the clubs in and around London. There are two
courses: the GLOSS course which is about 3½ to 4½ km (with optional extension to around 6
km) and is of moderate navigational difficulty and a ‘Yellow’ course which is about 2km with
easier navigation. Navigate between control points – you decide the best route in order to
complete the course in the quickest time. Beginners welcome. Below are links to each club’s
website where you will find details of how to enter each event. Start times are generally
between 10.00 and 12.00. SIAC contactless punching enabled throughout. Adults and
groups £6 to £9 depending on area; juniors and families on ‘yellow’ course £4. £1 for hire of
basic electronic timing ‘tag’ and, where available, £2 for contactless ‘tag’.

DateVenuePublic transportClub
Sun 22 JuneNorthla FieldsNorthholtSLOW
Sun 29 JuneHornchurch Country ParkElm Park + 252 busHAVOC
Sat 5 JulyHaileybury SchoolTheobalds Grove + 310 busHH
Sun 6 JulyFairlop WatersFairlopCHIG
Sun 13 JulyNonsuch ParkCheamMV
Sun 20 JulyHarmondsworth MoorWest Drayton + 222 busLOK

The GLOSS course is also the basis of an inter-club competition to win the prestigious
London Bus trophy. Each club’s best five events will count towards their series score. Best
six handicapped times count towards each club’s event score. Handicapping system based
on how well you perform against the average of your ranking points according to the
Ranking Scheme. Full details for the GLOSS competition at londonorienteering.co.uk
Contact for queries gloss@londonorienteering.co.uk