Flooded mine
Långban – Kollegiegruvan dive platform
Level 1 (about 20-30 m) for independent member dives; deeper levels unlocked progressively: operator zone [1] (After a guided first dive, members dive the first level independently and gain access to deeper levels as they log dives in line with their training.). These categories are the named scheme's own; they describe the training a site calls for.
The members-only diving entry to the flooded Långban mine: a platform built in Kollegiegruvan with kitting benches, lighting and nearby shallow decompression habitats.
Långban's divers enter through Kollegiegruvan, where the club has built and later doubled in size a dive platform with kitting-up benches, shelves, stairs, lighting and a whiteboard used for dive planning. Earlier dives started in Storgruvan.
Underwater, small habitats (air-filled shelters) at about 6 m hold two to four divers each during decompression stops, with more at 15 m. Dive events are mostly held at weekends and organised by the club's keyholders.
The environment
Cold (6 °C), very clear water in flooded shafts and levels of a historic mine; levels at about 21, 40, 55, 75 and 90 m.
Facilities
Dive platform with benches, shelves, stairs and lighting; underwater habitats at about 6 m and 15 m; nearby accommodation at Ericsson Gård.
Every fact on this page, with its source (7)
| Fact | Status | Source |
|---|---|---|
| Only club members dive at Långban; new members register online, upload their certificates and pay an annual fee. | Reported | [1] [2] |
| After a guided first dive with a keyholder, members may dive the first level (20-30 m) independently; deeper levels are unlocked progressively. | Reported | [1] |
| The first dive level is at about 21 m. | Reported | [1] |
| Water is a constant 6 °C. | Reported | [1] |
| Visibility is up to 40-50 m. | Reported | [1] |
| The Kollegiegruvan platform has kitting benches, shelves, stairs, lighting and a whiteboard dive planner; habitats at about 6 m hold two to four divers each. | Reported | [1] |
| Divers must be club members with registered certificates and a paid annual fee, and do a land tour and first dive with a keyholder. | Reported | [1] [2] |
Verified: stated by an official or primary source we opened. Reported: from a secondary source only. Sources conflict: the note gives both versions. May be out of date: the newest source we found is old.
Written in our own words from the sources above. Report a correction