FFF, at Wycombe Air Park the powered a/c and gliders fly opposite circuits on the same runway. The joining procedure on the day I went was to fly down the length of the runway at 1200ft AAL and descend on the crosswind leg to circuit height. Unfortunately this was a little tricky as they'd mistakenly given me the QNH instead of the QFE... anyway, to cut a long story short...
Just have to keep your eyes open!
(and wear plastic underwear)
