Paraglider pilots end up in trees all the time. Some of them keep a roll of dental floss in their flying suit pocket - unreel the floss and lower the plastic case to your rescuers, they tie a length of string to it, you haul it up, they tie a rope to the string, you haul it up, tie the rope to the branch and climb down.
Nearly as fascinating as the number of sea kayakers found drowned with their penises exposed.