Safety & standards
Built around the river, not imposed on it.
Swim London only operates as an organised, permission-led event. Safety planning, water-quality awareness and clear go/no-go criteria sit behind every decision we make.
Permission-led
We work in step with the Port of London Authority and river stakeholders. Event Management Plan, RAMS, insurance and risk assessments are central to the build.
Professional swim safety
A professional swim-safety lead and experienced operations team underwrite the on-water plan. Multiple safety boats support swimmers throughout the course.
Water-quality aware
Water-quality monitoring informs our go/no-go decisions. We will be honest with participants if conditions change.
Weather contingency
The event has clear postponement, amendment and abandonment protocols, signed off by our operator and swim-safety lead.
Our approach in plain English
- • We do not encourage unsupported individual swimming in the tidal Thames.
- • Swim London is an organised event with permissions, safety planning and water-quality checks.
- • Entry standards exist for a reason — they protect participants and the operation as a whole.
- • If conditions are not right on the day, we will say so.
A cleaner-river mission
We believe London should have cleaner, safer, more accessible urban waterways. Swim London helps champion that future through responsible events, education, partnerships and water-quality awareness.