The Warriewood to Mona Vale Ocean Swim, also known as the Don Jenkin Memorial Swim, is a part of the Pittwater Ocean Swim Series.
The main swim is a particularly challenging swim, heading north from Warriewood and travelling behind the break to Mona Vale.
This swim is actually one of the more challenging swims on the calendar, and at 2.2km, will prove tough for even the hardened ocean swimmer.
But both beaches are beautiful and provide more than enough motivation to get through the difficult challenge ahead.
A 900m swim, called 'Little Swim', is also held in Bongin Bongin Bay.
The event's transfer bus will loop close to the finish line of the 900m swim to transfer those who have entered both swims to Warriewood for the start of the longer journey swim.
The Warriewood to Mona Vale Ocean Swim is the fourth part of the Pittwater Ocean Swim Series.
If you manage to complete three of these five, you go into a random draw for a chance to win a weekend in Byron Bay.
But that shouldn't be the only thing to entice you to tackle this swim and the rest of the Pittwater Ocean Swim Series.
The entire series is a brilliant excuse to take in the beauty of five of Sydney's Northern Beaches.
Mona Vale is also the location of the Winter Solstice Swim, held in June each year.
Starting in front of the club house, the 900m 'Little Swim' heads east before rounding the rock shelf and returning into Bongin Bongin Bay.
The 2.2km Warriewood to Mona Vale course starts on Warriewood, running south to north.
The break at Warriewood at the start can prove difficult, with rips, gutters and shifting banks.
Once past the break, swimmers can take their foot off the pedal, but the run in to Mona Vale again poses challenges.
It can offer a run in, but has a longer break than at the start, and again has rips, banks and gutters.
You're spoilt for choice in the cafe department in the 'vale.
You can't go past the cute little Armchair Collective, Italian inspired Cinque Cucina Caffe or for something traditionally Aussie and with superb views, the Bronze Cafe.
Much like all the northern beaches, there are beach carparks scattered along the beach and free on-street parking. The locals are beach people, and if you're not there early you'll be turning your swim into a walk swim walk.