Airienteers will be running their first regional event of the year on Sunday, which has attracted runners from all over the north of England.
The event is at Penistone Hill Country Park, near Haworth, and will include some of the surrounding moorland.
Courses will vary in distance and technical difficulty ranging from an easy 1.3km to a very hard and technical 10km.
Meanwhile, Airienteers held their latest event last Saturday in the O-Lite series. More than 90 runners competed at Middleton Woods, near Ilkley, and the longest course (green) was won by Steve Watkins of Baildon in 30 minutes.
Tom Gomersall was second in 32 minutes while Frank Kew and Dave Bowman shared third spot in 33 minutes. Joyce Marshall of Menston was first woman home (44 mins) for 13th place.
Charles Smith (Yellow course) and Richard Adcock (Orange course) were the other winners on the day.
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