Swissmint released the third coin in its four part “Swiss Lakes” series on 19 March 2026, a 20 franc fine silver special coin dedicated to Lake Geneva. Struck in 999 silver, it pays tribute to Switzerland’s largest lake as a natural and cultural heritage site at the heart of Europe, and it does so with a slightly larger circulation than the two Ticino coins that preceded it.
The mintage shift is small, but for a subscription series it’s the kind of detail collectors notice. The first two issues, Lake Maggiore and Lake Lugano, were struck in 7,500 uncirculated pieces and 3,500 in proof. Lake Geneva moves to 8,000 in uncirculated quality in the blister and holds proof at 3,500 in presentation case. Modest, but a signal that demand on the series has held.
The Coin
The obverse takes the same approach Swissmint established with the Ticino pair: a bird’s eye view of the lake, with the surrounding landscape rendered in contour lines that radiate outward to the rim. For Lake Geneva, that landscape carries more freight than usual. The contour work extends across the cantons of Geneva, Vaud and Valais, and into France. The lake’s name appears in cursive script alongside the image, woven into the topography rather than placed above it.
The reverse is the series common design, unchanged across all four issues. A graphic symbolising Switzerland’s role as Europe’s water tower sits at the centre, with the denomination of CHF 20, the inscription CONFOEDERATIO HELVETICA, the year 2026, and the mint mark B for Swissmint arranged around the rim. The shared reverse is the structural argument of the series, four lakes, one Confederation, one water source for a continent.
Technical specifications follow the series standard: 20 grams of .999 fine silver, 33 millimetres in diameter.
The Lake
Lake Geneva, Lac Léman to most of the people who actually live near it, is the largest lake in Switzerland and the second largest in Central Europe by surface area. About 40 percent of it is French. The choice to render that border honestly on the obverse, rather than cropping the French shore out, is the kind of cartographic decision that’s easy to miss and harder to ignore once you see it. The earlier Ticino coins faced the same issue with Italy. This one makes the point at scale.
The Series in Context
Swissmint launched the Swiss Lakes program in October 2025 with the Maggiore and Lugano pair, framing it as a tribute to the country’s 1,500 lakes and dense network of rivers that make it the water tower of Europe. Lake Geneva expands the geographic scope considerably, from the southern Alpine basins shared with Italy to the westernmost Romandy lake shared with France. The series will close in 2027 with Lake Lucerne, the heart of Switzerland choice that completes the geographic argument the program has been building toward.
Availability
The coin is included in the standard Swissmint subscription, with online sales opening at 08:00 on 19 March 2026 through the Swissmint online shop. The Lake Maggiore and Lake Lugano coins both released at issue prices of CHF 30 for uncirculated and CHF 79 for proof; collectors building the set should expect Lake Geneva to track close to those figures.
For collectors who picked up the Ticino pair on release, this is the natural next purchase. For those who didn’t, the question is whether to start a series three coins in, and Swissmint’s decision to lift the uncirculated mintage by 500 pieces suggests the mint is anticipating exactly that question.
