

Best for beginner divers, 15-30m, shore entry.
Hallwilersee- Tennwill Strandbad is a calm freshwater dive site located on Lake Hallwil. Divers access the water via a straightforward shore entry from the beach. The lake floor slopes gradually, with the primary interest found at depths between 15 and 30 metres. Visibility typically ranges from 5 to 10 metres, and the site is free from currents, making it a suitable environment for beginner divers to gain experience. Facilities at the Strandbad include parking, showers, and a cafe. Water temperatures vary significantly by season, ranging from 10 to 13°C in April to 20 to 24°C during the summer months.
47.30447, 8.21787
The Strandbad has parking, showers, and a cafe on site, so you can travel light and rinse off easily after your dive. Entry is straightforward from the beach, but check the water temperature before heading out and pack an appropriate wetsuit, as Swiss alpine lake temperatures can drop significantly at depth.
Located at Strandbadweg 1, 5617 Tennwil.
No known hazards
Expected in this region. No sightings logged here yet.
Depth
15-30m
Visibility
5-10m
Skill Level
Beginner
Entry
Shore
Current
None
Best Time
Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
Yes, the absence of currents and the easy shore entry make this a comfortable location for newly qualified divers to build confidence.
The lake deepens gradually, with the most interesting diving found between 15 and 30 metres.
This is a shore-entry site with access directly from the beach at the Strandbad.
While the site is primarily used for diving, the gradual slope from the shore allows for surface swimming and snorkelling.
The best months to visit Tennwil Strandbad in Tennwil are March, April, May, June, July, August, September, and October. Conditions outside these months can still be good but are less predictable.
Visibility at Tennwil Strandbad in Tennwil typically ranges from 5 metres to 10 metres. Conditions vary with weather, tides, and seasons.