From April 1st 2019 tours will be operating from a temporary building located in our carpark while work continues on the refurbishment of the visitor centre. Please note that there are no catering facilities within this temporay building

Book an underground tour

Tours run daily from April 1st 2019 to 30th September 2019. All other times, select days only, please call for details.

For booking information, call the Visitors Centre on 01286 870636.

From the centre, a First Hydro bus will transport visitors to the Power Station itself. Descending deep inside ancient Elidir mountain's labyrinth of dark and imposing tunnels, visitors will experience one of man's greatest engineering achievements.

First Hydro Safety Procedures require that all visitors wear Safety Helmets on the Underground Tours. These helmets are not suitable for use by babies and young children, we therefore cannot allow any children under the age of 4yrs on the tours. Anyone suffering from claustrophobia may suffer some discomfort while underground and they are advised not to take the tour. As visitors are entering an industrial site suitable footwear must be worn, specifically no flip flops, sandals, open toes or high heels.

PLEASE NOTE THAT ALL VISITORS MUST BE ABLE TO GET ON AND OFF THE TOUR BUS IN DESIGNATED AREAS. NO ONE IS PERMITTED TO STAY ON THE BUS WHILE THE TOUR PARTY ARE IN MOTION.

Restrictions: No cameras, mobile phones, handbags, rucksacks etc allowed on the tour. Lockers are provided.

  • From the Electric Mountain Centre a tour bus will transport visitors underground to the power station.
  • From the main inlet valve gallery, you can then witness Dinorwig's massive pump/turbines in action.
  • The bus then takes you up to the surface and then back to Electric Mountain.

It's electrifying!

Jan, Feb, March : Closed for refurbishment

April, May: Open 10am to 4.30pm - Tours daily

June, July, Aug: Open 9.30am to 5.30pm - Tours daily

Sep, Oct: Open 10am to 4.30pm - Tours daily

Nov, Dec: Tours operating on select days only

All School Holidays: Open 9.30am to 5.30pm