
Bussenried, Oct 2018

Bündtlisried, Oct 2020

Simmelried-2011

Hagstaffel pond, Oct 2022

Lake Constance, May 2021

Mainau pond

Mühlhalden pond, September 2022

Mühlweiher Litzelstetten, Jul 2023

Pond of the waste disposal company Constance, October 2022

Purren pond, 2021

Ulmisried 2016