Anastasia McCammon & Martina Mächler - a class on water (suit by Karolin Braegger, photo credits: Esther Neff)

Anastasia McCammon & Martina Mächler - a class on water (suit by Karolin Braegger, photo credits: Esther Neff)

Anastasia McCammon & Martina Mächler - a class on water (suit by Karolin Braegger, photo credits: Esther Neff)

Anastasia McCammon & Martina Mächler - a class on water (suit by Karolin Braegger, photo credits: Esther Neff)

Anastasia McCammon & Martina Mächler - a class on water (suit by Karolin Braegger, photo credits: Esther Neff)