Do have an Irish Sim card or test with your copy of google maps on your mobile as early as possible. Look out of Killashee hotel on R448 heading South out of Naas, then Green Avenue on right turn (or west of R448). Zooming in reveals Willow Cottage. The water features are not fully accurate. A creek that runs by the road leading to the cottage is not seen on seen on Google maps, among others ... therefore one seems to find an unmarked bridge.