At day's end, I tied up the boat near a Canal & River Trust service shack: water, elsan, toilets and shower.
A shower! 🚿
I hurried from the boat to the CRT building in only my shorts, T-shirt and shoes, towel and soap in hand. (These places lack clothes hooks, so fewer items is better.) They did have a wooden bench, and a disabled grab handle that I used as a towel rack.
May the towel with the image on it bring a burst of both the sea and happiness to your bathroom, and may every time you use it be a mini-break for you as well.