Happy Tammsvik, Villa Mälargården, Konferens
| Ecolabel | Nordic Swan Ecolabel |
| Category | Conference |
| Product group | Hotels and other accommodation 055 |
| Criteria generation | 5 |
| Licensee | Happy Tammsvik, Villa Mälargården |
| License number | 3055 0342 |
| Brand | Happy Tammsvik |