Lake Brienz is a freshwater diving destination within the Thun and Interlaken region of Switzerland, offering a range of dive sites across still, inland waters. The observation-backed highlight is Common Perch, present across all sites and reliably encountered on almost any dive. Visibility varies with season and conditions, ranging from moderate to good. With no snorkelling sites and no listed operators, visiting divers will need to come self-sufficient and independently organised.
7 operators
Hergiswil, Switzerland
Hergiswil, Switzerland
Switzerland
Fin maps 11 sites in Lake Brienz (11 scuba diving sites).
11 more sites to explore
Across Lake Brienz's dive sites, June, July, August, September and October are most often reported as the best months to visit.
Common Perch is the most reliably observed species, recorded with sightings across all sites in the lake. Rainbow Trout has also been observed, though less frequently. A range of other freshwater species including Burbot, Pike, Carp and Catfish are associated with the lake, though these are expected-range rather than confirmed sightings.
The lake's calm, sheltered freshwater environment and lack of strong currents make it a reasonable setting for less experienced divers. However, visibility can be variable, and with no operators currently listed, beginners should ensure they dive with a qualified guide or within a self-organised group.
There are currently no dive operators listed for Lake Brienz, so access to sites is self-organised. Divers should research individual entry points in advance and ensure they carry their own equipment. Buddy diving is strongly advisable given the independent nature of diving here.
Lake Brienz offers freshwater diving with a resident population of Common Perch that can be found across every recorded site. The Freshwater Jellyfish is also associated with a significant portion of the lake's sites, making it an unusual species to look out for. The range of visibility conditions adds an element of variety from one dive to the next.
