Spring has sprung in New Zealand. Newborn lambs are frolicking, buds are bursting and the roadsides are filling fast with brightly-coloured daffodils. Still a bit too chilly for full-blown summer camping, now’s the season to test the waters with a bit of Glass-box glamping. And where better to do it than Kaikoura, in New Zealand’s South Island, where there’s a 20-square metre glass hut positioned...