Somewhere in the Welsh hills there is a peat bog, and once a year hundreds of people in flippers and snorkels - many in elaborate fancy dress - swim two lengths of it as fast as humanly possible, using nothing but leg power since conventional swimming strokes are banned. It's been the Guinness World Record holder for longest-running event of its kind since 1985, and it is exactly as muddy and joyful as it sounds.
| Dates | Aug 30, 2026 |
|---|---|
| When | late August |
| Frequency | annual |
| Price Range | ~£20 adults |
| Country | United Kingdom |
| Vibes | Quirky Local |
| Location | Llanwrtyd Wells, Wales |
| Website | Available on upgraded listings — upgrade this listing |
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