Wetsuit: everyone entering the water must wear a wetsuit (both long or short-sleeves/legs are fine). We have a recomended wetsuit hire company who can help you with your wetsuit hire for the day.

If you are being towed in a vessel (dinghy, canoe, inflatable, etc.) & do not plan to enter the water at any point, you do not need a wetsuit, but will need to bring a well-fitted life jacket/buoyancy aid to wear.

Swim cap (provided by us): we'll give you a colour-coded cap at registration on the day.
Goggles: highly recommended.
EITHER: clothes for next stage/s (to be worn under wetsuit) if you are doing more than the swim stage. Keep in mind that whatever you wear under your wetsuit you will also be wearing for the cycle & push/run. 
OR: swimming costume or trunks (to be worn under wetsuit). We recommend this if you are only doing the swim stage. 
Towel (or two)

Optional:

Nose clip
Flippers & floats: either/both of these are welcome.
Tether: for visually impaired participants or to help tow Superheroes in vessels.