The Lake Thun with a surface area of 48.3 km² (German: Thunersee) is an alpine lake in the Bernese Oberland. The lake is surrounded by a fabulous mountain scenery.
Panorama Thunersee
Panorama Lake Thun. The full panorama with identified summits you can see here.
Switzerland 2011 Lake Thun stamp stamp Switzerland 2003, Lake of Thun, Stationery Card.
The Eiger, Mönch and Jungfrau in the background. The frontside of the card shows the Oberhofen Castle, built in the early 13th Century.

Switzerland 2011 Lake Thun stamp stamp Switzerland 2011,
The stamp was issued in the series "Pro Patria – Steam Boats".
The Steamboat: "Blümlisalp" with the foothill of Guggisgrat (left) and Harderkulm (right)
length: 63.4 metres
width: 13.3 metres
passengers: 750
HP: 650
draught: 1.31/1.60