RTV trials usually take place on farmland, a quarry site or at a dedicated off-road driving center, and are usually organized by a dedicated trialing body (such as the All Wheel Drive Club or The Association of Land Rover clubs in the UK), or by a vehicle owner's club. The course consists of 10 to 12 "gates" marked by two garden canes (sticks), vertically placed. The gates are just wide enough to get a standard vehicle through. One vehicle at a time attempts the course, and is deemed to have cleared a gate if at least one of the front wheel hubs passes between the canes. The vehicle's attempt ends when it comes to a stop (depending on the exact level of skill the trial is aimed at, any stopping may end the attempt, or a few seconds may be allowed). Long-wheelbase vehicles are usually allowed to perform a three-point turn if needed, providing the driver declares where the turn is going to be made before they attempt the course (this puts a strong emphasis on ground-reading ability).