30m pools in london

you will be surpised how much technique there is with front-crawl. need to be able to "glide" rather than dragging yourslef along with your arms. 2 stoke breathing for distance swimming too. apologies if i telling you stuff you already know.

aiiii. it's all about technique. if you get it all working together you can pass folk with half their cadence with hardly any legs at all.