08 essex mersea island

Setting foot on an island always feels like adventure, but walking all the way round takes it to a whole new level. And in some places all you need is one day.

■ Distance: 11¾ miles/19km ■ Time: ...

■ Distance: 7 miles/11.2km ■ Time: ...

MULTI-DAY HIKE

■Distance: 6 miles/9.8km ■Time: 3½ hours ■ Grade: ...

■ Distance: 6 miles/10km ■ Time: 3 hours ■ Grade: Moderate