We spent a beautiful sunny winters day on the Swan River watching the canoes & power boats compete in the Avon Descent...
info from Wikipedia
The Avon Descent is an annual, two-day, white water event involving both paddle craft (kayaks, surf skis) and small motor boats. It runs from Northam to Perth, Western Australia along the Avon and Swan Rivers, and is held in August of every year.
Sponsors and commercial support regularly changes, sometimes annually.
It is the only event in the world where both power craft and paddle craft race compete. The course has Grade 2–4 white water rapids and is 124 kilometres (77 mi) long.[1] The first Avon Descent was held in 1973. There has been an increase in the prize pool from 2007 of $10,000 providing an extra $6,000 for 1st, $3,000 for 2nd and $1,000 for 3rd fastest single paddle craft. In 2006 757 competitors started the event in 459 craft.
The top class in the powerboats is the 10hp sports class. These boats are made from foam and fibreglass, and have hydraulic jacks that enable the motor to be jacked up. The motors are unmodified and run a surface piercing propeller. These powerboats can reach speeds of approximately 70km/h.
