I’ve stayed here a few times now when I’ve visited North Wales. No Facilities but an ideal place to park up for a good night sleep. Some Road Noise as you’d expect but after 10/11pm it’s very quiet. Keep it clean and tidy and leave no trace. 2 min drive down the road is the Ogwen Valley Information Centre and that has a toilet but not sure if it’s 24 hours but definitely open during the day