Start with primary sources
We use material from organisations such as the Japan Coast Guard, Japan Meteorological Agency (JMA), Japan Lifesaving Association, JAMSTEC and Ministry of the Environment. We consider the scope and conditions of each source and publish reference links and a source-check date with every lesson. Citing an organisation does not mean it has reviewed this site.
Keep the conditions with the guidance
Sea conditions and people’s swimming ability and strength differ. We do not label a real place safe based on a simple diagram or general explanation. Current official information and local instructions take priority.
These materials are initial drafts. Safety specialist review has not yet taken place. Before public launch, our policy is to obtain appropriate specialist review and check understanding with children, parents and teachers. The English version also needs language review; we do not claim a native-speaking editor has approved it.
AI helps with production; sources support facts
AI assists with wording and production. Illustrative images are not treated as photographic records, and diagrams explain what they leave out. AI output alone is not evidence for a scientific or safety claim.
Update when the content needs it
Even foundational topics can be affected by changing sources or safety recommendations. After launch, we plan to review sources every six months and revisit significant safety changes as they become known. We will not change dates simply to make content look new.
When correcting an error, we check affected articles, diagrams and any related printable material. We also check both language versions and record the correction. See how to report an error.
Organisations and learning resources
Development record
Added the English site, including seven lessons, translated diagrams, activity checklists and visitor and emergency guides for Japan.
Added swimming and tide-pool activity guides and expanded checklists. Added tide-pool and wind lessons with six groups of diagrams. Expanded the tide lesson with five illustrated guides and checked primary sources.
Created the first local version with five learning themes and preparation materials. Teacher and worksheet pages are currently unavailable.