Close to 4,000 paid €35 each to take part in Saturday's Runamuck Challenge in Johnstownbridge in Kildare – an event that now quickly sells out each year.
The specially designed course is not for the faint-hearted, but for many it is a welcome diversion from the regular road-race circuit.
You are unlikely to every again use the running gear that you wear when competing in the Runamuck Challenge!
Adventure events like these are unique and that in itself helps to sell the experience to a fast-growing audience.
The Johnstownbridge event is organised by Outfront Events, which also organises the Urban Trails Series, Athlone 3/4 Marathon and the Eco2Run events.
There were two distances to choose from on Saturday: a one-lap and a two-lap course.
Denis Kelly was first home over the one-lap course, finishing in 25.27.
Julia Chwist of the A&L Goodrunners was best in the women's event, where she posted 28.55.
Joshua McNulty (Saucepan Sex Bombs) took the long route through the mud and obstacles and finished the two-lap course in 46.45.
Meanwhile, Laura Slevin (Aaaagh Go On) led the women home in 1:04.52.
MINI WIN FOR DRUMM
Orla Drumm came home a winner in Saturday's Limerick Women's Mini-Marathon, an event that attracted an entry of more than 2,000.
The Crusaders AC runner finished the 8k course at the University of Limerick in 28.17, well clear of Carol Finn (Kanturk) who finished second in 30.16. Laura Collins (Ballina/Tipperary) placed third in 31.46.
Shona Keane was fourth in 33.27 and Gráinne Costello was fifth in 34.14. The wheelchair category was won by Nicola Dore.
The grounds of UL provided a perfect setting for this event, which has taken place in Limerick for the past 15 years. After the event, a special presentation was made to Limerick AC's Paddy O'Connell, one of the founders of the event.