I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
A great place for flying and a day out at the lake in Llanberis, North Wales. Parking is easy as there is a small area at the entrance to where the castle is. It's easy to find also. Head into Llanberis and before you enter the town it is on the right when you come out of the 40 zone. Great views of the castle, two lakes and the Snowdonia Mountain range. It is also down the road from the train that takes you up Snowdon.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 21/09/2020. It remains the responsibility of any pilot to check for any changes before flying at the same location.