Forget your tum this summer. For best results, focus on achieving a wonderful taut bum, says Peta Bee

Now that Ireland’s first official nudist-friendly beach has opened at Hawk Cliff, Dalkey, Co Dublin, Robert Hume takes the opportunity to look back at changing attitudes towards what was deemed proper to wear at the seaside.

Technically, the bikini may have been invented in 1946, but the video below shows us what women have been wearing at the beach since 1890.

Let's all digest that for a second.