About this swim spot
Rope Walk, Henley (River Thames) is a river swim spot on the ENG coast and one of around 2,000 UK swim spots Hattie Knows monitors continuously. River swims depend on flow, recent rainfall and any sewage discharge upstream. Hattie checks every UK water company's storm-overflow feed every 15 minutes.
Every Hattie verdict combines direct ingest from all 12 UK water companies' Event Duration Monitoring feeds, EA / NRW / SEPA / DAERA bathing-water samples, Met Office and Open-Meteo forecasts, UKHO tide tables, and live flood warnings — fused into a single read of whether it is safe to swim right now.