Blue Lagoon Open Water Swimming

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69 Hitchin Road

SG15 6RS
United Kingdom

A very popular venue for Open Water swimming for triathlete’s in Hertfordshire. Please use the forum /FaceBook to organise which open water swimming location other members are using each week.


  • Price: £2
  • Open water swimming during the summer is informally organised but usually the season starts in late May and finishes in September on Saturday morning 6:30am for a 7am start (weather dependent, times may vary).
  • Sessions are arranged via the Blue Lagoon WhatsApps group
  • All swimmers must sign in and out
  • Tri-force committee members have a key to access the venue
  • Please note: all open water swimming is unsupervised
  • Members must swim in a group no less than 3 people
  • Please act responsibly at the venue as we are guests
  • Please see the FAQs section for specific questions


Upcoming Events

  • No events in this location