609 in 2015 and later

648 past in 2015 (updated 17-07-'15)

Swim Enduroman,

Date: 
Tuesday, 26 May, 2015 (All day)

Swim Enduroman: 12 mile Continuous  - Tuesday 26th May 2015

http://www.enduroman.com/#/festival-of-ultra-events/4585000329