Changing a swimmer/support boat or skipper.

Duo and team swimmers confirm their intention to enter the Event by making payment up front at the time of registering. There are no refunds for duo and team swimmer withdrawals. 

• Duos and Teams cannot transfer or assign a successful entry to another person or team.

• Duos may change a maximum of one swimmer.

• Teams may change a maximum of two swimmers.

Further changes will alert the RCSA and are deemed to be a transfer which requires the approval of the RCSA.

The RCSA will not allow any transfers between solo, duo or team categories of the Event.


How do I find a support boat?

Organising a support boat is often very difficult so it is important to get started in organising your support boat and skipper at least six months prior to the event, especially those swimmers coming from interstate or overseas. Swimmers are required to have their boat and skipper information entered into the registration system by 31 January 2020, failure to do so will result in a forfeit of your entry. Skipper and boat details will be able to be updated until 5.30pm (AWST) Wednesday, 19 February 2020 before fees will apply for changes. If this information is missing (or found to be incorrect ) by 5.30pm (AWST) Friday, 21 February 2020, participants of this registration will not be permitted to enter the water.

The options with the best success rate are as follows:

1. Advertise within the ‘Forums‘ section on our website – this has proven to be the most successful method.

2. Post a notice on the wall of the Rottnest Channel Swim Facebook Page

3. If you know of anyone in Perth, perhaps ask them to ask around on your behalf. Word of mouth is also very successful.

4. Advertise in local newpapers/The Quokka.

5. Advertise on Gumtree – FREE online.

What kind of swimsuits can be worn in 2020?

In any Rottnest Channel swim attempt a swimmer is not allowed to use, or be assisted by, any artificial aids.

In any Rottnest Channel swim attempt, Swimsuits must comply with FINA’s Open Water Swimming Rules.  Generally, FINA provides that a complying suit:

    1. Is of a woven textile material
    2. Does not cover the neck.
    3. Does not extend beyond the shoulders or ankles

FINA rules are subject to revision from time to time.  It is the responsibility of each swimmer to ensure compliance.

The RCSA provides the following guidance in the application of this rule for the purposes of any Rottnest Channel swim attempt:

You may:

    1. (for modesty) wear two suits so long as one suit comprises only briefs (men and women) or a bikini (women)
    2. grease the body before a swim
    3. use goggles
    4. wear  two caps (your official cap must be the outer one worn)
    5. use a nose clip
    6. use earplugs
    7. wear a rash vest / stinger suit

You may not:

    1. Wear any item with neoprene or any other buoyant material.
    2. Wear anything not within the spirit of FINA’s rules or within the spirit of the RCSA exemptions.

If I don’t live in Perth how do I complete my solo qualifying swim and attend the compulsory briefing?

Under the Event Rules, an intending solo swimmer must have either completed a Rottnest Channel Swim solo crossing within the previous two years or completed a 10km qualifying swim between 1 November 2019 and 1 February 2020. If you are a first time solo swimmer, or you have not successfully completed a solo crossing in the last two years, you need to qualify by completing a 10km time trial in 4 hours and 15 minutes between 1 November 2019 and 1 February 2020.

Please visit Qualifying Swim for details on how you can complete a qualifying swim.

A Safety Briefing will also be held for any non residents of Perth unable to attend the compulsory safety briefing on 1st February 2020. The venue and time is to be confirmed.

If you have any further queries, please contact query@rottnestchannelswim.com.au.

How do I know what size Solo Jacket to order?

Solo swimmers only: Solo swimmers who successfully complete the crossing will receive an official 2020 Rottnest Channel Swim solo jacket. At the time of registration, solo swimmers are to select the correct jacket size as per the measurements below. Solo Jackets form part of the official prize pack and as per the Terms and Condition of entry, solo swimmers who withdraw from the event, or are unsuccessful in the crossing will not be entitled to receive the solo jacket.

Women’s Jacket Sizes:

SizeBustCB  Length
XS (8)4960
S (10)51.562
M (12)5464
L (14)56.566
XL (16)5968
XXL (18)61.570
XXXL (20)6472

Men’s Jacket Sizes:

SizeBustCB  Length


How do I order additional T-shirts and know what size to order?

Solo swimmers: Solo swimmers who successfully complete the crossing will receive an individually embroidered official 2020 Rottnest Channel Swim T-shirt. At the time of registration, solo swimmers are to select the correct T-shirt size as per the measurements below. Due to the T-shirts being individually embroidered, there are no exchanges. Solo swimmers who withdraw from the event, or are unsuccessful in the crossing will not be entitled to receive the individually embroidered T-shirt.

Duo and team swimmers: All duo and team swimmers receive one complimentary 2020 Rottnest Channel Swim T-shirt each with their entry. Duo and team swimmers will receive their T-shirts in their registration pack which they will receive at the Event Briefing held in February 2020. Swimmers may exchange their T-shirt for another size at this time, subject to the correct size being available.

Support Boat Skipper, Paddler, Friends, Family, Cheer Squad: Additional T-shirts for support boat skippers, paddlers, or friends and family can be purchased via the online registration system or at the Event Briefing to be held in February 2020. It is highly recommended swimmers order any additional T-shirts for their support crew in advance via the registration system to avoid disappointment as T-shirts sold out for the 2012 and 2013 event and 2018 left us with only extra-small and large sized t-shirts.

Purchasing additional t-shirts for the 2020 Event.

Online sales for additional t-shirts  will open with the registration system. These will also be available for purchase during the Metro Event Briefing in February 2020 and on event day at the finish line.


SizeBustCB  Length

* Please note:
the chest measurements are for ½ chest taken 2cm below the armholes and 1.5cm+/- variations may occur. Sizing is unchanged from previous years.

Can I enter as a solo as well, in case my duo/team is not successful in the first-in first-served system?

No you cannot. You must only enter once and in one category only. Swimmers who submit more than one entry will be penalised and will be banned from entering the Rottnest Channel Swim for two years; the current event and the next event.

What size support boat do I need?

Entrants must organise their own support boat and paddle craft – no personal watercraft (jet skis) are permitted.

The size of the boat required is determined by two factors:
• The minimum size of boat that is legally permitted to travel to Rottnest Island;
• The number of people onboard.

For these reasons, and for comfort and sun/wind protection, the RCSA recommends the following size boats:

CategoryRecommended Boat Size
SoloNo less than 5 metres
Duo/TeamNo less than 6 metres


The RCSA will, however, allow any vessel with a length 4.5 metres or greater legally permitted carry the whole team (including the swimmer(s) and paddler(s), and support crew).

The number permitted is determined by either the information displayed on the Australian Builder’s Plate or (if there is no Builder’s Plate) by reference to the WA Department of Transport requirements per the following table:

Length of BoatMaximum number of people aboard
(including the swimmer/s and paddler/s)
4.5m to less than 5.0m5
5.0m to less than 5.5m6
5.5m to less than 6.0m7


It is the responsibility of the skipper to make sure the boat is suitable and capable of making the trip and to check, and double check, that the support boat is not overloaded.
It is highly recommended but not compulsory, that paddle craft be used to assist the swimmer/s and skipper on the day.

Boats 10 metres or greater must stay north or south of the fleet at all times. A tender will be required to be in close proximity to the swimmer (tenders must have all safety equipment onboard).

Further minimum support boat guidelines include:

• 1 x life jacket (PFD Type 1) for each person onboard – including swimmers and paddlers;
• All skippers must be in possession of a Recreational Skippers Ticket – this ticket number will need to be provided at the time of entering your registration;
• All vessels must carry an operational two-way VHF marine radio, two hand-held organe flares, and two parachute distress rocket flares;
• All vessels must meet the WA Navigable Waters Regulations requirements for registrable vessels;
• All vessels must be equipped with the required mandatory safety and emergency equipment as per the WA Navigable Waters Regulations;
• All vessels must carry an anchor and line;
• Vessels greater than 7 metres must have a bilge pump fitted.

* Please note: If a boat fails to meet the minimum safety equipment requirements, the team or individual will be disqualified (DSQ).

Event Cancellation

An event of this nature is dependent upon weather conditions. The Race Committee (consisting of Race Director, Chief Referee, Safety Director, DPI Representative and RCSA President) has the right to cancel the event if adverse weather conditions prevail or are likely to occur. No swimmer or team is to disregard this decision.

Do I need insurance for the event?

The Rottnest Channel Swim Association (RCSA) has very limited insurance cover for the event. The RCSA strongly recommends that all participants (swimmers, paddlers, support crew) ensure they are adequately insured for the risks present on the day of the event. The RCSA cannot accept liability for personal or property damage resulting from your participation in the event.