Kathryn O'Brien for Equisearch

Intrepid adventuress Kathryn O'Brien files her first of eight dispatches from Ireland's Kinnitty Castle, where she and several other single horse lovers are spending St. Valentine's week trail riding by day and socializing by night.

Kathryn O'Brien files her first dispatch from her inn-to-inn riding trip through France's Loire Valley, where she is enjoying brisk trots through the beautiful countryside and delicious three-course meals.

In her second diary entry from Ireland, Kathryn O'Brien reports from Kinnitty Castle that the livin' is luxurious, and the horses are "huge, fit and ready to go!"