January 2017 to December 2017, 2 photos.

Brougier Park: During winter time the Brougier Park is rarely used for swimming and having picnic. Later we went diving here. The water was warmer than the air. Apple iPhone SE, 1/121 s, F/2.2, 4.15 mm, ISO 25, Sunday, January 8, 2017 10:06:04

Lake Lucerne: At dive site Riedsort nearby Weggis. The water of Lake Lucerne was about 6 °C kalt — warmer than the air. After diving it started to snow. Apple iPhone SE, 1/223 s, F/2.2, 4.15 mm, ISO 25, Sunday, December 10, 2017 12:05:38