Woman in yoga position on a paddleboard
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Yoga all at sea

SUP yoga, or stand up paddleboard yoga, involves most of the moves of normal yoga, but is done on a paddleboard in the water.

Yoga requires focus, stamina and patience.

But if that still sounds a bit too easy you could try a new form of yoga being taught in Cornwall.

SUP yoga - or stand up paddleboard yoga - involves most of the usual yoga positions, but with the added complication of it being done at sea on a paddleboard.

Jen Austin runs a yoga school in Newquay and teaches the practice when tide and weather allow.

BBC News went along to a class.

Video journalist: Dan Curtis

Stop/Start is a series of video features for the BBC News website which follows both new trends that are beginning and old traditions that are coming to an end.