Austria · about 10 km from Gmunden
Rötelseehöhle
- Max depth48 m
- CertificationFull cave
- Water temperature≈ ~6 °Cestimated, no reports yet
- SpecialExperienced divers
Diving and fills
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Fills nearby
- Fill stationUnder Pressure Divecenter (Weyregg am Attersee)Air and nitrox (EAN28, 32 and 36) to 220 bar, trimix, oxygen up to 100 % and helium; argon on requestRoute ↗
- Fill stationATS DiveCenter Seefeld (Steinbach am Attersee)Air, nitrox and trimix (per Upper Austria's tourism website; not on its own website) — askRoute ↗
- Fill stationNautilus Tauchcenter (Unterach am Attersee)Air (also 24/7 at the outdoor fill station), nitrox, trimix and argon; O₂ and pressure (200/300 bar): askRoute ↗
The dive
In April 2010 visibility was 5–8 m (with the water 1.5 m above normal from snowmelt); on the way out in 2011 it was zero. A 2010 dive took ~58 min bottom time, 106 min in total.
Profile and sections
In April 2010 visibility was 5–8 m (with the water 1.5 m above normal from snowmelt); on the way out in 2011 it was zero. A 2010 dive took ~58 min bottom time, 106 min in total.
Upper Austrian cave divers explored the cave in 2009–2011, followed by line clean-up and survey work in 2011. The cave is a Naturdenkmal.
- Depth and profile
- Cave lake ~150–160 m², ~4 m deep (>7 m in flood), 6–9 m below the entrance · underwater: air chambers (Deixlersee, Zwergendom at ~50 m), then a steep passage to -48 m (2010) · 2011: ~20 m of new low passage beyond the Zwergendom, to -27 m · cave surveyed to 391 m
- Configuration
- In 2010 dived with two rebreathers (eCCR and mCCR), each with 2× 80 cft bailout and an O₂ cylinder staged at -6 m. Beyond the Zwergendom a low, heavily silted passage. Water ~6 °C.
- DPV: Not DPV-suitable (estimate)
- Steep carry and a short, low, silty passage: no scooter (estimate).
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Configuration unknown — research beforehand
- Goes down to 48 m (trimix or deco may be needed)
- Experienced divers only
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
By boat across the Traunsee (e.g. ~15 min from the Winkel slipway) or by kayak to Karbach on the east shore, then a steep path to the entrance at 600 m (~20–50 min, ~170 m of ascent). Inside you descend a ~25 m debris slope to the cave lake. In 2010 six porters carried ~200 kg of gear; in 2011 the team built a 370 m material ropeway. Land of the Österreichische Bundesforste: permission required.
Around Rötelseehöhle
Fills3 fill stations · nearest 20 km
Under Pressure Divecenter (Weyregg am Attersee)
Landeroith 1, 4852 Weyregg am Attersee
Air and nitrox (EAN28, 32 and 36) to 220 bar, trimix, oxygen up to 100 % and helium; argon on request
Apr–Oct Tue–Sun 9:00–18:00; Nov–Mar Thu–Sun 9:00–17:00; open on public holidays. Closed for the company holiday 7–31 January. Groups also by appointment.
Dive base on the east shore of the Attersee, open all year, with shop, fill station for technical gases and service workshop. Technical courses (TDI) from Intro to Tech to Advanced Trimix, and sidemount up to Tec Sidemount. Rooms at the base.
ATS DiveCenter Seefeld (Steinbach am Attersee)
Seefeld 14, 4853 Steinbach am Attersee
Air, nitrox and trimix (per Upper Austria's tourism website; not on its own website) — ask
By appointment only
Centre for technical and rebreather diving (IANTD Diamond Facility) at Gasthaus Föttinger, on the east shore of the Attersee: rebreather courses (JJ-CCR, iQsub XCCR and FX) from recreational to trimix, crossovers and test days, and servicing of rebreathers, regulators, heating and scooters. Second address: ATS DiveBase, Haslach 4, Steinbach am Attersee.
Nautilus Tauchcenter (Unterach am Attersee)
Atterseestraße 86, 4866 Unterach am Attersee
Air (also 24/7 at the outdoor fill station), nitrox, trimix and argon; O₂ and pressure (200/300 bar): ask
May–Sep daily 9:00–18:00; Oct daily 9:00–18:00 (16–31 Oct weekends only); Apr and Nov Fri 14:00–18:00, Sat–Sun 9:00–18:00; Dec–Mar by appointment. Outdoor station (air) 24/7.
Dive centre right on the Attersee with shop, repairs, rentals, technical training and rebreather support. Trimix for visitors: ask in advance.
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