Cook Strait, 22.5 kilometres across, has always been the biggest challenge because of its treacherous tides and weather patterns. Following the first, and unsuccessful, attempts by R. G. Webster and Lily Copplestone in 1929, various people tried but failed to conquer it. The first successful crossing was made by Barrie Devenport on 20 November 1962. American Lynne Cox was the first woman to cross, on 4 February 1975. The first non-stop double crossing was made by Philip Rush on 13 March 1984. The current time record is held by Casey Glover, who swam the strait on 13 April 2008 in four hours 37 minutes.
Foveaux Strait is wider by 3.2 kilometres thank Cook Strait and much colder, Foveaux Strait is less often attempted. The first person to swim it was John van Leeuwen on 7 February 1963. The first woman to cross was Meda McKenzie on 20 March 1979. The speed record is held by Chloe Harris, who set a time of 8 hours 30 minutes 5 seconds on 1 February 2016.
The first person to swim across Lake Taupō, a course of 40.2 kilometres, was Margaret Sweeney on 30 January 1955. The first double crossing was made by Philip Rush on 14–15 January 1985. He also holds the time record of 10 hours 14 minutes 58 seconds, set on 10 March 1985.
WAIHEKE to AUCKLAND - NZ
The swim is 20km from Mataatia wharf to Judges Bay in Auckland City. The swim is part of the Westpac Chopper Charity Swim.
APOLIMA STRAIT - SAMOA
The swim tracks from Upolu island to Savai'i Island across Apolima Strait traveling east to west in Samoa traveling east to west. Distance is 22.3km starting at Mulifanua by the wharf, and finishing at Lusia's Lagoon Chalets in Salelologa. The swim is operated by Samoa Events. The event is annual. There is also a Double crossing every 2 years.
On the California Coast from Catalina Island to the mainland.
The swim is operated by the Channel Swimming Association across the English Channel.
NORTH CHANNEL - Ireland to Scotland
The North Channel swim is approximately the same distance as the English Channel, but it has two major differences. The first is the sea temperature, which can be 3-5 degrees lower and the second is the hundreds of Lions Mane jellyfish which plague the Channel during the summer months and are for the most part unavoidable.
Tahiti to Mo'orea
Circum-Swim of Bora Bora
These two swims are managed by Samoa Swim. Tahiti to Mo'orea is 22 km in distance, and around Bora Bora is 23 km.