10 Ways To Improve Using The Guru (UP TO 25% OFF IN THE BLACK FRIDAY SALE!)

A long long time ago, when millennials were still at school and people still bought CDs, if you didn't have access to a Swim Smooth coach to improve your swimming, you would have bought one of our coaching DVDs. All was good in the world - sunglasses got bigger and bigger, Uber referred to German cyclists and a Blackberry wasn't a fruit for a while.

But …