Ojamo mine pond (Ojamon kaivoslampi)
The flooded open pit at Ojamo, Lohja, from which divers enter the horizontal levels of the old limestone mine. Closed to outsiders; diving runs through the rights-holding club and two training providers.
The mine pond is the open pit of the former Ojamo lime mine. Its water reaches ground level, so divers can kit up beside the water and enter directly, then descend to the first tunnel level. Safety and rescue structures have been installed at the pond according to the national broadcaster.
The site is shared by recreational mine divers of the rights-holding association and by professional diver training run by the vocational consortium Luksia and the maritime safety school Meriturva.
Die Umgebung
Open-pit pond leading to cold (about 4 °C), clear mine levels with horizontal tunnels at fairly constant depths; summer surface water can be murky.
Bedingungen
Surface water warms in summer (around 20 °C) and loses clarity; deep water stays about 4 °C (2013 figures).
Typische Wertebereiche aus veröffentlichten Quellen, keine aktuellen Bedingungen.
Alle Angaben auf dieser Seite mit Quellennachweis (5)
| Angabe | Status | Quelle |
|---|---|---|
| Access for outsiders to the Ojamo mine pond is prohibited; the rights holders are Ojamon kaivossukeltajat ry (since 2024), Luksia and Meriturva. | Gemeldet | [1] |
| The most common dive depths are 28, 38 and 58 m. | Gemeldet | [1] |
| Deep water is about 4 °C year-round and surface water reaches about 20 °C in summer.2013 source. | Möglicherweise veraltet | [2] |
| Diving under ice requires cave or mine diving training. | Gemeldet | [1] |
| The water is level with the ground, so divers can park beside the pond and enter directly.2013 description. | Möglicherweise veraltet | [2] |
Verifiziert: von einer offiziellen oder primären Quelle bestätigt, die wir geöffnet haben. Gemeldet: nur aus einer Sekundärquelle. Quellen widersprechen sich: Die Anmerkung enthält beide Versionen. Möglicherweise veraltet: Die neueste von uns gefundene Quelle ist alt.
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