My husband and teenage sons cannot think of anything worse than sitting still, cross-legged in a quiet room, chanting Om. So, when it comes to choosing a family holiday my requests for yoga classes get lost somewhere between theme parks and football camps (kids) and cultural city tours (husband). It was with some trepidation this year that I took my reluctant teenage sons to Paradis Plage, a yoga and surf hotel in Agadir, Morocco.