Laguna Badeland

Laguna is run by Laguna GmbH at Am Wasserwerk 2, 79576 Weil am Rhein, in the border region of Switzerland, France and Germany; the operator puts more than 750,000 inhabitants in the immediate catchment and about 450,000 visitors a year. The complex has three parts: the indoor Erlebnis-Badeland with a wave pool and children's paradise, a large open-air bath, and the Sauna Parc, described as 3,000 m² with seven themed saunas, an indoor pool, an outdoor pool, a plunge pool, an ice fountain, a Celtic steam bath, a whirlpool and a 4,000 m² garden.

The bathing hall publishes five pools with their temperatures: the wave pool at 30 °C, a 25-metre sports pool at 28 °C, an adventure pool at 34 °C, a children's paddling pool at 33 °C and an outdoor pool at 32 °C. The wave pool is described as over 40 m long under a large glass pyramid. The adventure pool covers over 170 m², with a water veil to dive through and a 60 m² broad wave slide. Two figures on this page disagree: the pool list gives the children's paddling pool as 33 °C, while the prose lower down on the same page calls it a paddling pool of 32 degrees, with cascade, spouting animals and a mini slide. Beyond those there are Champagner-Sprudelliegen with floor jets, massage nozzles and a waterfall, and separate whirlpools described as 34 °C.

Three large slides are listed: the Black Hole, a darkened tube of over 100 metres with light effects; a Wildwasserbahn; and a new funnel slide that drops riders from around ten metres into a vortex. No lengths are given for the latter two.

The water in the Badeland is plain heated water — the operator makes no thermal or mineral claim for it anywhere. Brine appears only in the sauna park, and only seasonally: the outdoor pool there is, in the operator's words, "von Herbst bis Frühjahr mit ca. 30° warmer SCHWEIZER SALINEN SOLE befüllt", that is filled with Swiss saline brine at about 30 °C from autumn to spring. No brine concentration is published.

The sauna page gives per-cabin temperatures: Damen-Sauna 85 °C at about 10 % humidity, Meditations-Sauna 90–100 °C, Alpenkräuter-Sauna 65 °C at about 30 %, Parc-Sauna 85 °C, Gipfel-Sauna 80–85 °C, Salzstein-Sauna 75 °C and Event-Sauna 90–100 °C with room for up to 100 people, plus the Keltenbad at 42–45 °C and about 100 % humidity. That is eight headed entries against the seven themed saunas the homepage counts; the Keltenbad is the site's Kelten-Dampfbad, a steam bath rather than a sauna, which accounts for the difference.

The Badeland opens Monday to Sunday and on German public holidays from 10:00 to 20:00, and the operator states it runs 364 days a year, closing only on 25 December. An adult day ticket is 20,00 € Monday to Friday and 21,00 € at weekends and on holidays, with a four-hour ticket at 16,50 € / 17,50 € and an evening tariff from 17:00 at 9,00 €; young people aged 6 to under 18 and reduced categories pay 17,00 € / 18,00 €, and children 0–5 pay 3,50 €. Combination tickets including the open-air bath cost 4,00 to 4,50 € more. Residents of Weil am Rhein aged 6 and over get a half-price day ticket on the first Tuesday of each month. The open-air bath is seasonal — the site announces its 2026 closure on 14 September — and a maintenance shutdown ran from 14 to 25 September 2026 for the Badeland and 14 to 18 September for the Sauna Parc.