It's not exactly Helen Skelton's Amazon attempt, but it's a pretty big challenge.Dougie Vipond, who I work with on The Adventure Show and is a pretty good paddler, has teamed up with morning show presenter and comedian Fred MacAulay, who has been in a kayak three times.
(I think they're wearing PFDs in that photo - they're not that big!)
Together they will kayak from Fort William to Inverness in aid of Sport Relief. It will take them three days.
That means kayaking the length of Loch Ness, as well as portaging their kayak, equipment and food around the numerous canal locks. They'll camp and cook their own food, under the watchful eye of Neil Baxter.