12 locals recommend
Hours of Operation statusOpen · Closes 4:30 PM
Tips from locals
Interesting if you like engineering and being deep undergroundin tunnels. Great when the weather is bad
It is amazing - a cavern bigger than St Paul's cathedral hewn out of rock with a power station installed in it, a café and an art gallery. Then go into Llanberis for quaint and cafes or climb Snowdon.
The tour of Electric Mountain in Llanberis is pretty mind-blowing. How did they turn the inside of a mountain into a power station?!
Find out how electricity is generated for peak demand using the power of water. Great activity for children on a rainy day. There is a nice park on the waterfront in Llanberis too.