609 in 2015 and later

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

‘Swim The English Channel Swim Up North’ Relay Challenge, Boundary Water Park, Allostock, Great Britain

Date: 
Saturday, 20 June, 2015 (All day)

Swim the ultimate long distance challenge as part of a relay team.

The relay challenge swim can take upwards of fourteen hours to complete its 36km (22) miles length and participants will swim it as part of a team of either 2, 4 or 6 swimmers.
This offers teams a real challenge and is great preparation for future Channel attempts, relays and solo!

http://www.uswimopenwater.com/events/swim-the-english-channel-swim-up-north-relay-challenge/