Three members of a YouTube travel blogging collective have died after falling over a waterfall in Canada. Ryker Gamble, Alexey Lyakh and Megan Scraper were part of High On Life, who post videos of their travel adventures.The group said: "They were three of the warmest, kindest and most driven and outgoing people you could ever meet."Police said the trio were swimming at the top of Shannon Falls in British Columbia on Tuesday when they "slipped and fell into a pool 30m (98ft) below".Other members of the group, who have 1.1 million followers on Instagram and more than 500,000 YouTube subscribers,...