Straffan ( Teach SrafÃ in in Irish ) is a village in County Kildare , Ireland situated on the banks of the River Liffey , 25 km upstream of the Irish capital Dublin . Straffan ( variously Teach SrafÃ in , StrafÃ in or An Cluanini in Irish ) is a village in County Kildare , Ireland , situated on the banks of the River Liffey , 25 km upstream of the Irish capital Dublin .