2 running, cycling, and mountain biking events in Twizel, Canterbury

Dive into the adventure at the

Meridian Swim Ruataniwha.

The ultimate open water swim on the sparkling turquoise waters of Lake Ruataniwha, right in the heart of the stunning Mackenzie Region!

Since making a splash in 2023, this event has already given back over $20,000 to local community groups – supporting everything from water safety programs to water-based activities across Twizel. Groups like Mackenzie Lakes Coast Guard, Twizel and South Island Rowing, St John, Twizel Swim Club, Land SAR, and the Twizel Community Patrol have all benefited – proving that every swimmer, sponsor, and supporter is helping the community thrive both in and out of the water.

Now entering its 4th year in 2026, Meridian Swim Ruataniwha has cemented itself as a must-do event on the southern swim calendar. And thanks to the Southern Swim Series – linking together The Ruby in Wanaka, The Whakatipu Legend in Queenstown, and of course, our very own Meridian Swim Ruataniwha – swimmers can take on all three and be in to win a spectacular spot prize worth at least $750 in 2026!

✨ Save the date: Saturday 14 March 2026 ✨

The first splash hits the water at 9:30am (final start times confirmed closer to the day). With three fun-filled challenges, there’s something for every swimmer:

🏊 The Top Hut Sports Bar & Bistro 500m – the perfect entry-level event for first-timers, social swimmers, or anyone keen to dip their toes into open water.

🏊 The Twizel/Mackenzie Four Squares 1500m – a great middle-distance swim for those who want to test themselves and feel the thrill of a challenge.

🏊 The Mt Cook Alpine Salmon 3800m – our premier endurance event, tailor-made for experienced open water swimmers and triathletes chasing their big goals.

With awesome spot prizes, a buzzing lakeside atmosphere, and the knowledge that your swim is giving back to the Twizel community, Meridian Swim Ruataniwha is more than just a race – it’s a celebration of people, place, and the joy of open water swimming.

🌊 New for 2026 – The Teams Category! 🌊

Swim Ruataniwha just got even more exciting – now you can race not just for yourself, but as part of a Team! When you enter, simply select if you’re swimming solo or lining up with your crew.

🏊 Two team vibes – pick your style:

• Social Teams – All about fun, friendship, and giving it a go! Gather your workplace buddies, swim club mates, or group of friends and take on any event together.

• Performance Teams – Serious speed and bragging rights on the line! Perfect for club rivalries or anyone chasing the title of fastest team in the lake.

⚡ How it works:

• Teams must swim the same distance event (but your workplace or club can have multiple teams across different distances).

• A team can comprise swimmers across all age groups, but must all swim in the same event.

• Make sure your team name is identical for all team members entering.

• A team needs a minimum of 3 swimmers with maximum of 5 swimmers making up a team.

• The fastest 3 times in your team are averaged to determine your result (Performance Team)

• ✅ No extra entry fee! Everyone just enters individually, add your team name, and your results automatically count towards your team.

• All Teams must be complete by event entry close at midnight 11 March 2026. No on the day teams will be accepted.

So, rally your squad, lock in a name, and dive in – because Swim Ruataniwha 2026 isn’t just about individual glory, it’s about team pride too! 💪

Important Information

Minimum Age - 1500 and 3800 Swim Events

The 1500m and 3800m are restricted to competitors over 16yrs of age at event date. If you are under 16 years and would like to participate in the 3800m or 1500m Swim Event, please contact the event organiser at [email protected] requesting a dispensation to the age limit. Details to be provided with this request must include details of prior cold water and distance swimming events undertaken and details of swimming ability provided by recognised swimming coach.

Late / On the day entries:

No entries will be accepted after entries close at midnight Wednesday 11 March 2026.

Cancellations and refunds:

The Meridian Swim Ruataniwha operates as a not-for-profit community event. Any surplus funds from the event will be invested in the Twizel Community. In the event that an entrant is unable to participate, no refund will be provided. Consider your entry fee as a contribution to water based activities & water safety in the Twizel community.

In the unlikely event that the Meridian Swim Ruataniwha event is unable to proceed for all participants, refunds will be provided less a $10.00 handling fee.