- Air temperature: 6-8 + degrees  all year.

- Temperature water: 5-7 degrees  all year .

- Size of groups:For individual groups of sight seeing: minimum 20 people. Weekend: minimum 50 people. By advertised event / concert, no minimum number.

- We run regular tours at 18.00 PM every day and you can send sms to 483 18 800 to enroll you in, no minimum number of these tripsBut depends on enough participants, clarified the day before. Food service possible here.

Price per person for sight seeing: 400 NOK.

- Sight seeing consists of: Boat trip on the lake, water bottling and viewing film of mine. Time on group of 50 people. about 1 hour and 15 minutes.

- Smoking is not allowed inside the mine.

- Helmet is required  inside the mine, except in he concert hall. Each person is assigned borrow a helmet on arrival.

- Floatwest is  required on boat trip on the lake. Each person is assigned borrow a floatwest on arrival.

- Boat and area is universally designed. By requiring transportation due wheelchair, it can be arranged.

- Concert hall is heated by hydronic heating to about 22 degrees.

- Recomended clothes for boat trip: warm jacket

- There is no fish in the lake.