Its on the corner of Simmenscourt road and Angelsea road and is a nightmare to get into and out of afterwards. Better of parking in Donnybrook if you're coming in that wayThere is a church at the back of the RDS
I think most of the parking pay and display finish at 6.30 so anywhere around Clyde road to Herbert Park should be OK as well. Maybe someone can officially clarify that they are not any later than 6.30 ?