The Riva del Tenciù is the public shore of Laglio, a monitored bathing site whose water went from “Excellent” to “Sufficient” in 2025.
What it is like
The official profile of the bathing site, drawn up in May 2023, describes a sloping platform of stone and sand, with a pebble beach next to it, about fifty metres wide. There are waste bins and a drinking fountain. Dogs are not allowed.
The water in recent years
The site has a more eventful water-quality history than others. On 15 June 2021 La Provincia di Como wrote that the shore had been reopened after three years of works and that, alone among the forty tested in the province, it was not fit for bathing: the mayor explained that the ban was due to the building site, now finished, and that the health authority (ATS) would repeat the tests from 21 June. Three years earlier the clean-up works on the first basin of Laglio had ended, with the collector to the Camogge treatment plant at Colonno that had stopped the discharges into the lake.
On 5 July 2024 EspansioneTv reported a temporary bathing ban ordered by the mayor after the ATS Insubria sampling, which had found escherichia coli values above the limits, with information signs near the beach.
Practical information
- The competent authority given in the profile is the Comune di Laglio, telephone 031 400148.
- We have not found on an up-to-date official source any hours, services or rules of use beyond those in the profile: ask on site.
- The coordinates on this page are those of the “Riva del Tenciù” sampling point in the European bathing-water data (EEA).
Water quality
In the official European classifications (data reported by Italy to the European Environment Agency) the “Riva del Tenciù” site is rated “Sufficient” in 2025, “Excellent” in 2024 and 2023 and not classified in 2022 and 2021. “Sufficient” is the lowest of the three classes that the European directive considers compliant, after “Good” and “Excellent”. The classifications summarise several seasons of sampling and do not rule out temporary bans after storms or other events: before swimming, check the Ministry of Health’s Portale Acque and the signs on site.
Sources
- La Provincia di Como, «Laglio, aperta la riva del Tenciuu. Beffa: il lago non è balneabile» (15 June 2021)
- EspansioneTv, «Lago di Como, bagni vietati nel paese di Clooney» (5 July 2024)
- Ministry of Health, Portale Acque: profile of the bathing site «Riva del Tenciù» (May 2023)
- EEA: European bathing water quality in 2025