Location
Germany
Status
Informal / Traditional
Suitable for
Adults only
Terrain
Grass / lawn
Best season
June to August
About Diez: Baggersee
The Baggersee Diez at Altendiez, near Diez on the Lahn, is a former limestone quarry in the Nassau nature park that was opened for bathing and diving in 1975. Steep limestone walls surround clear, turquoise and rather cool water, 8 to 10 m deep in most places and around 15 m at the deepest, with sunken objects for divers. Because the banks drop steeply, entry is via a ramp, stairs and iron ladders; it is suitable only for confident swimmers. The site is run by an operator who charges admission, and a dive base is on site. Naturist reports describe a separate, signposted FKK section on the far side of the lake, reached by walking round from the entrance (going left round the lake), with mostly grassy lying areas, some screened from view and some not. The FKK crowd is described as mixed and friendly. The kiosk is on the opposite side, so bring drinks for a full day.
Getting there
The lake is at Altendiez near Diez (Rhein-Lahn district) and has a car park. Admission is charged by the operating company; diver reports mention about 6 EUR plus a parking fee, but check current prices. The season runs from early April to late October. From the entrance walk round the lake (to the left) to the signposted FKK area. Water entry is by steps, a ramp or iron ladders, so it is not barrier-free.
What visitors say
Visitors praise the clear water and the friendly, sociable atmosphere in the FKK section. Drawbacks mentioned: the lake is small, the walk to the FKK side crosses almost the whole site, entry is via iron ladders, and food is only sold on the opposite side. Some non-naturist visitors complain about having to pay admission even in the evening. Divers rate visibility as good, best in the first half of the season.
Summarised in our own words from public reviews and guides listed under Sources.
Amenities
Legal context
Bathing is regulated by a Rhein-Lahn-Kreis ordinance that allows swimming only at spots marked by the operator. Naturist reports (2004, 2006) describe an operator-signposted FKK area, but no official document confirming it was found.
Naturism at Diez: Baggersee sits under Germany's rules for traditional tolerance — custom more than statute.
Full country law: Germany public nudity guide.
Researched 24 October 2026. No official source confirms naturist status, so treat it as unverified.
Location
View on interactive map
Approx. 50.3702, 7.9938
Visitor tips
- 1 Informal / tolerated site — be discreet and leave no drama.
- 2 Towel, water, sunscreen. Sit on your own towel.
- 3 No photos without clear consent.
- 4 Check access, tides, and parking before you go.
- 5 House rules and local custom can be stricter than the law.
More in Germany
Frequently asked questions
Is there an FKK area at the Baggersee Diez?
Naturist reports describe a separate, signposted FKK section on the far side of the lake from the entrance.
Do I have to pay?
Yes, the operator charges admission and parking; diver reports mention about 6 EUR plus parking.
Is it good for children?
Not really: the banks are steep and entry is by ladders or steps, so it suits confident swimmers.
When is it open?
From early April to late October.
Sources
Important
Beach status changes. Verify current conditions before you go. This is guidance, not legal advice.
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