Opening hours
Here you will find the opening hours at Blaafarveværket, Haugfoss, Nyfossum and Koboltgruvene in 2026. Season opening is 9 May.
Værket
9 May – 19 June
| Tuesday - Sunday * | 11-17 |
| Open on Ascension Day and Whit Monday. Closed on other Mondays and 17 May. |
20 June – 16 August
| Every day | 11-17 |
17 August – 4 October
| Tuesday - Sunday ** | 11-17 |
| ** Open Monday, 28 September (autumn holiday) |
The Cobalt Mines and the Kittelsen Museum
9 May – 19 June
| Tuesday - Friday * | 13-16 |
| Saturday - Sunday * | 11-17 |
| Open on Ascension Day and Whit Monday. Closed on other Mondays and 17 May. | 11-17 |
20 June – 16 August
| Every day | 11-17 |
17 August – 4 October
| Tuesday - Friday ** | 13-16 |
| Saturday - Sunday | 11-17 |
| ** Open Monday, 28 September (autumn holiday) | 13-16 |
Nyfossum and Nymoen
9 May – 19 June
| Tuesday - Sunday * | 11-17 |
| Open on Ascension Day and Whit Monday. Closed on other Mondays and 17 May. |
20 June – 16 August
| Every day | 11-17 |
17 August – 4 October
| Tuesday - Sunday ** | 11-17 |
| ** Open Monday, 28 September (autumn holiday) |
Haugfoss
9 May – 19 June
| Tuesday - Sunday * | 11-17 |
| Open on Ascension Day and Whit Monday. Closed on other Mondays and 17 May. |
20 June – 16 August
| Every day | 11-17 |
17 August – 4 October
| Tuesday - Sunday ** | 11-17 |
| ** Open Monday, 28 September (autumn holiday) |