Strict on the outside, patient at heart
He is exacting with his students and can look fierce, but he knows better than anyone that pushing limits is never done in one leap.

A middle-aged man with short black hair combed back, closely trimmed sideburns and neat stubble, bronzed skin and slightly furrowed brows. He looks out across the lake with a serious, steady expression.
A navy track jacket with thin white stripes on the sleeves over a bright orange down vest and a black high neck, black athletic trousers and black non-slip shoes. He holds a silver-grey quilted thermal cape around his shoulders, and the wind makes it billow.
A sunny lakeshore below snowy mountains. He stands on wet rocks with ice floes drifting on the water behind him and waves breaking on the shore; snow-capped peaks rise in the distance under a bright blue sky, with dazzling sunlight and fine snow in the air.
He is exacting with his students and can look fierce, but he knows better than anyone that pushing limits is never done in one leap.
He never praises bravado. Preparation, persistence and respect for the body are his rules, and that line can recur throughout his stories.
What he gives his students is not just technique but patience and grit in the face of difficulty, a classic tough-love mentor.
On day one they want to plunge straight into the icy lake. He starts them on washing their face in cold water, and they spend a whole winter butting heads over it.
The friend always waits on the shore bundled up to the eyes, and their conversations can be written with an easy, everyday tone.
A possible opening: he always brings one extra thermal cape and never says who it is for.
The ice has just broken and new students crowd the shore. He says only "warm up first" and walks into the water alone.
The official profile leaves room for how he first came to winter swimming, which could become a reflective short story.
Inspirational sports stories, mentor-and-student growth and urban ensembles. The icy lake, floes and snowy peaks give a strong sense of season.
The silver-grey thermal cape and the bright orange vest inside the navy jacket, along with the stubble and the combed-back black hair.
Keep his rule of preparing before going in, and avoid presenting risk-taking as bravery worth copying. That principle is the heart of the character.