Prepare a supported open water swim: check local conditions, exits, company and equipment, close the shore check-in and review completed pace records.
Start with an organized, supervised venue or open water club. Explain your pool experience and what you want to practice to the responsible coach or venue team. Agree on a suitable session with them. Pool pace and a completed checklist do not establish readiness for outdoor conditions. First-time open water or cold-water swimmers should discuss immersion risks with a health professional before going.
Check permission, closures and water-quality notices with the venue or local authority. Review weather, water temperature, tides or currents, obstacles and boat activity. Confirm the permitted swimming area, entry, normal exit and backup exit with the venue team. Cancel or change the plan when conditions are unsuitable or uncertain.
Go with a buddy and follow the supervised session arrangements. Tell someone ashore the location and expected return. Agree on how to summon assistance, who contacts the local emergency service and what to do if a swimmer is missing. Carry an appropriate way to call for help, such as a waterproofed phone and whistle.
Check the venue’s equipment rules and fit your swimwear, goggles and any required wetsuit. Use a bright cap and appropriate tow float for visibility. Prepare dry warm clothes and a warm drink for returning. Discuss equipment use with the session team before entering.
Enter slowly; do not jump or dive in. Follow the agreed supervised practice, maintain awareness of your buddy and exit, and get out if you become too cold, tired or uncomfortable. There is no fixed stroke-count sighting rule or universal session duration here. Review sighting and breathing with the coach for the actual conditions.
Confirm everyone is out and tell the shore contact you have returned. Note the actual conditions, observations and feedback before considering another session. If reviewing pace, use an accepted completed distance and elapsed time for the same segment, with the original units, timing source and independently prepared pace. Save the separate tool report if useful.
Loading your checklist…
Keep the actual session details separately and update them when arrangements change.
| Record | What to retain |
|---|---|
| Venue and people | Session date; venue contact; buddy; supervisor; shore contact |
| Local checks | Permission and notices; source and time checked; conditions; permitted area |
| Exit and assistance | Entry; main and backup exit; assistance signal; local emergency contact and access |
| After returning | Everyone accounted for; shore contact notified; observations and coach feedback |
Illustrative completed record only: accepted 1500 m in 25:30.00 with an independent 1:42.00 per 100 m summary.
| Arithmetic | Result |
|---|---|
| Elapsed clock | 25 × 60 + 30 = 1530 seconds |
| 100 m units | 1500 ÷ 100 = 15 |
| Pace per 100 m | 1530 ÷ 15 = 102 seconds = 1:42.00 |
| Difference from independent summary | 102 − 102 = 0 seconds |
| Interpretation | Arithmetic agreement for this record; no readiness or future-performance conclusion |
Read the full guidance and obtain current local venue advice. These UK sources do not define every country’s emergency numbers or beach flag system.
A faster pool record is useful context for a coach, but is not an outdoor readiness decision.
A booking or a completed checklist does not require you to enter the water.