How to enter

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Entries close online on 26 Jan, 8:00 am

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Event Website

At a glance

Mon, 26 Jan 2026

Mt Martha Beach, Mt Martha VIC

Ocean Swim

200m, 400m, 1.2km & 5km

Great Victorian Swim Series

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Mon, 26 Jan 2026

MMAD Swim

Mount Martha LSC

How to enter

Online entries are open.
Entries close online on 26 Jan, 8:00 am

Enter Now

Event Website

At a glance

Mon, 26 Jan 2026

Mt Martha Beach, Mt Martha VIC

Ocean Swim

200m, 400m, 1.2km & 5km

Around The Buoys

Why this event?

Take part in one of the safest open water swims with over 100 water safety personal

The Mount Martha Annual Diamond Swim (MMAD Swim) is one of the safest open-water swims on the calendar with our 100 water safety personnel supporting swimmers every year.

Held at Mt Martha Beach in Mt Martha, Victoria, the event offers three swim distances including a 400m, 1.2km and 5km in an around-the-buoys course.

There is also a 200m Nipper swim for the kids, so why not make it a family fun day of ocean swimming.

The MMAD Swim is a community-focused event that believes that fitness should be a way of life, not a list of goals to achieve which is why the event is for everyone no matter their fitness ability.

New for 2026 is an exciting “Swim With a Friend, Family or Team” category for the 1.2km swim — perfect for those who want to share the experience, laugh together, and celebrate the joy of swimming side by side.

What's on offer

200m Ocean Swim

Bentons Rd Vet Clinic Nipper Swim

13 years

The course will see them swim out from the beach before turning two buoys and returning to sure to finish. Medals will be awarded to the 1st, 2nd and third Male and Female swimmers.

400m Ocean Swim

Sayers & Co Novice Swim

10 years

This is the perfect event for those new to ocean swimming or looking for a shorter distance to enjoy. Swimmers will swim out 200m before turning a buoy and returning to shore to finish. There are no trophies or prizes for this event as it is purely a fun participation event.

1.2km Ocean Swim

Ritchies IGA MMAD Swim

13 years

This event is the main event of the day and great for swimmers of all abilities. Swimmers will swim out before completing a diamond shaped course and returning to shore. Swimmers must keep the first marker on their left and the following course markers on their right. Medals will be awarded to overall winners and age group placegetters.

5km Ocean Swim

Croft Wootton Challenge Swim

13 years

The 5km Ritchies IGA Swim is the perfect distance for those swimmers looking for a challenge. Swimmers will complete two laps of the triangular course. There is a compulsory two hour cut off time for the event. Medals will be awarded to male and female placegetters.

Make this summer count – join the GVSS!

Join the fun, friendly statewide challenge linking this swim and 9 other iconic Victorian swims and go in the draw for amazing prizes, including a Swim the Whitsundays tour, the new 2026 Pier to Pine Norfolk Island escape, and post-event giveaways all season. Plus, the first merch range of the new era has landed! Sign Up Today

Prepare for this event

Have A Go: 1km Training Program
Whether you’re coming back after a long break or you’re completely new to swimming, we’ll help you prepare for your 1km swim. Learn more

Learn online with the OceanFit Academy or join a hands-on ocean clinic to improve your surf and open water skills.

Photo highlights

Getting there & around

There is a large car park located close to Mt Martha Beach, offering easy access for beach visitors. Additional parking options are available along the Esplanade and surrounding side streets.

Mt Martha Beach

Mt Martha VIC, Australia

While you're there

Mt Martha is a gem on the Mornington Peninsula, offering peaceful beaches and scenic coastal trails. Start with a visit to Mt Martha Village, where you’ll find a selection of charming cafes and shops perfect for a relaxed afternoon.

For a bite to eat, try Mr. Curtis, a cozy spot with ocean views, or the Little Birdy Cafe for fresh, local flavours. If you’re feeling adventurous, take a walk along the Balcombe Estuary Boardwalk, which winds through beautiful wetlands and bushland, or explore the iconic colourful beach boxes along Mt Martha Beach.