In Bangladesh’s southwest delta, climate adaptation unfolds less through mass migration or master plans than through everyday routes. In August 2023, 40 young people from 5 flood-prone villages mapped 120 geotagged journeys to water points, schools, clinics, markets, and cyclone shelters. Their stories reveal “routes of care” patterns of movement that sustain families and keep communities rooted under pressure. Three practices recur: staying, where repair and mutual support enable life in place; leaving and looping back, where seasonal departures strengthen ties through return; and protection, where circuits of water, health, and education provide survival. These everyday mobilities challenge the binary of migration versus immobility and explain why national strategies such as Tidal River Management and the Bangladesh Delta Plan 2100 succeed only when aligned with lived routes. Four design principles emerge: map real paths first, value staying as care, support looped mobility, and integrate water, health, and schooling.