A two-person inflatable advertised by someone else that can be also used in rapids up to g2+ when on inland rivers;
http://www.adventurepro.com.au/forums/yabb2/YaBB.pl?num=1337300758/2#2Pic also shows a (white-water) kayak that I wish to sell - the blue-coloured playboat made by Bliss Stick in NZ. It is 2.2m long. Have had fun paddling this on shorter distances on Sydney Harbour, but you may need a spray-deck.