I don't know if I will be comfortable with public showers and cold water. I was lucky that when I DNF'd in Villaines in 2019, the showers were empty and I found one with hot water. Otherwise, I don't know if I would have showered. But on the bright side, with the weather over there I may not even need a shower.
It's a lot different here in my country where after a hot, humid and sweaty afternoon (or two), showering really makes a difference. During one 600k the hotel I stopped at even had a bathtub.