Watch Great Britain's GB's Etienne Chappell win gold in the Men's K1 Extreme Slalom at Lee Valley on Saturday.
- Lee Valley White Water Centre hosted the canoeing at the London 2012 Olympics
- Olympic gold medallists Joe Clarke wins Men's K1 final
- GB's Mallory Franklin wins Women's C1 final gold, Kimberley Woods picks up the silver
- C1 final is Franklin's second gold of the weekend
Watch Great Britain's Mallory Franklin winning run as she earned gold in the Canoe Slalom World Cup K1 Final at Lee Valley on Saturday.
It's a format that looks brutal at times - four paddlers on the same course, inevitable and plentiful contact - but Extreme Canoe Slalom might be heading for the Olympics and viewers will have a chance to see it at Lee Valley this weekend.
With governing bodies developing shorter, less complex formats of their sports to attract younger audiences, future Olympic games may look very different.
"We know that the IOC are looking to improve their youth appeal," said Jean-Michel Prono, the technical head at the International Canoe Federation. "So far we have developed this at ICF World Cup and World Championship level.
"But right now, we’re just keen to show that this format is attractive and viable - it's still being developed. We have one-and-a-half to two years to make changes and make the format consistent."
Prono reports that the feedback from television partners has been positive and Extreme Slalom is in the programme for the next Pan-American Games. The long-term goal for the new format is to be accepted for inclusion in the 2024 Paris Olympics.
Ryan Westley, who won last year's European Championship C1 gold in his best season so far, found out he had been selected for the GB team when he came round from the shoulder surgery he chose to have during the winter.
"I knew could be pre-selected so didn’t have to race for selection and that gives more time to get back to full fitness," he told BBC Sport."I feel like I haven’t prepared, but I feel like I'm in as good a shape as if I had."
Now Olympic selection is on the line all over again. "For me it’s the first Olympic selection where I’ve been racing it seriously," he said. "2015 I maybe had an outside chance, whereas this one I feel like I’m coming in much more as a contender, so there's added pressure."
"But hopefully that’ll bring out the best in me."
Great Britain’s Mallory Franklin has a chance of a golden double when she goes in the women’s K1 and C1 events.
C1 is set to make its Olympic debut in Tokyo, where Jessica Fox will be the one to beat. The Australian went through 2018 undefeated in the discipline and finished with a world championship title back in in Rio.
Fox had just turned 18 when she won the Olympic title in London with Maialen Chourraut of Spain taking the bronze, positions that were reversed four years later in Rio. Chourraut will also be present at Lee Valley this weekend.
Held over three meetings in Lee Valley (UK), Bratislava (SVK) and Ljubljana (SVN), the Canoe Slalom World Cup is an annual series of races which have been taking place since 1988.
The three events see four types of discipline. Single canoe (C1), double canoe (C2) and kayak (K1).
The reigning champion for the men is Alexander Slafkovsky from Slovenia while Australia's Jessica Fox took the crown for the women.
David Florence was the last Briton to take the men's C1 title in 2010. Meanwhile, the women's C1 class has seen more recent British success with Mallory Franklin taking the title in 2016.
On Saturday, the Men's C1 & Women's K1 Finals take centre stage at 12:00 BST with the Women's & Men's K1 Extreme Slalom following it at 15:00 BST.
Meanwhile on Sunday, Olympic gold medallists Joe Clarke & Christopher Bowers could feature in Men's K1 final while Mallory Franklin, Kimberley Woods & Sophie Ogilvie all in GB's Women's C1 squad with the action getting under way at 12:00 BST.
Sunday 16th June
12:00-13:15 BST (BBC Red Button, Connected TV and online)
15:15-16:45 BST, Highlights (BBC Two)
The British Isles are made for canoeing!
You can learn the basic skills and build your confidence on calmer, inland waters, like rivers and lakes. To paddle in canals, you'll need a licence.
With the right training, you can enjoy spectacular scenery canoeing on coastal waters. Or if you fancy challenging yourself further, then white-water descents will provide a thrilling experience.
All paddle sports are a great way to improve cardiovascular fitness, muscle strength and flexibility, you can push yourself as hard as you want.
Whether you're going down rapids or drifting down a clam river, paddling can be incredibly therapeutic for both mind and body and it doesn't have to be competitive.
Recreational canoeing can be started at an early age, enjoyed by all members of the family, even into retirement.